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Swapnil's Messageboard - II

This is my newest messageboard. Feel free to express your views about anything. You can also comment on my problems and ask me questions about things in general. As mentioned on my previous messageboard, Please share Math olympiad problems here.

Cheers!

Regards, Swapnil Das

Note by Swapnil Das
2 years ago

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Hello Sir, I want your help. I am very weak in geometry , so I wanted to take some advice from you about it. Please tell me what shall I do to improve it. Thanks.

@Michael Mendrin Swapnil Das · 1 year, 8 months ago

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@Swapnil Das well u've got lvl 4 n u r say'ng u r weak!! Sarthak Rath · 1 year, 8 months ago

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@Swapnil Das Me too ! I am also weak in Geometry. Rajdeep Dhingra · 1 year, 8 months ago

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Well, @Rajdeep Dhingra Can you please post some more projectile motion problems in your free time? I @Swapnil Das would be indebted! ( Just trying to see what happens when you mention yourself!) Swapnil Das · 1 year, 11 months ago

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Comment deleted Jun 03, 2015

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@Noel Lo Thank you very much! Swapnil Das · 1 year, 11 months ago

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How to dethrone a complex cube root of unity from its complexity? This is a stupid short puzzle type made by me. Nihar Mahajan · 1 year, 4 months ago

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@Nihar Mahajan by cubing it?? Dev Sharma · 1 year, 4 months ago

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@Dev Sharma Correct. :P Nihar Mahajan · 1 year, 4 months ago

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@Nihar Mahajan what would happen if we multiply it to zero? would it die!? Dev Sharma · 1 year, 4 months ago

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@Dev Sharma Yes and then @Swapnil Das will arrange its funeral :) Nihar Mahajan · 1 year, 4 months ago

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@Nihar Mahajan Lol, but you have to promise to pay the expenses :P Swapnil Das · 1 year, 4 months ago

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@Joy Patel Instant action, isn't it? Swapnil Das · 1 year, 5 months ago

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Are you Swapnil or Swaplin? Or wait........ Are you Einstein?

All I know is that you are a high profile physicist. :3 Nihar Mahajan · 1 year, 5 months ago

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Why dont you come on fb? Dev Sharma · 1 year, 7 months ago

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@Dev Sharma I usually avoid social distraction and adore isolation with mathematics. Swapnil Das · 1 year, 4 months ago

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Please do post solutions for my Set- Just for Fun!. I love your solutions!

Khang Nguyen Thanh Swapnil Das · 1 year, 9 months ago

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@Swapnil Das @Khang Nguyen Thanh Rajdeep Dhingra · 1 year, 8 months ago

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@Satyajit Mohanty Namaskar , Kemiti Accha? Swapnil Das · 1 year, 10 months ago

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@Swapnil Das Bhala Achi :D Odia re katha hele non-Odia loka bujhi paribeni :P Satyajit Mohanty · 1 year, 10 months ago

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@Satyajit Mohanty Na bujhantu , aamar kana jauchi! Aapanankar Ganit kete badhiya! Aapana Rmo re qualify karithile ki? Swapnil Das · 1 year, 10 months ago

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@Swapnil Das Yeah! In 2013. I was the State Topper Even. I was studying in Rajasthan back then. Satyajit Mohanty · 1 year, 10 months ago

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@Satyajit Mohanty Oh, so nice to talk to a mathematical prodigy! Can you please advise me for RMO?

@Satyajit Mohanty Swapnil Das · 1 year, 10 months ago

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@Swapnil Das RMO is very elementary... If you're able to solve Level 4 problems here in Brilliant in Number Theory, Algebra, Geometry, Combinatorics, you'll top RMO :) Satyajit Mohanty · 1 year, 10 months ago

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@Satyajit Mohanty sata re?? kintu mu ta karipareni!! hardly 2-3 solved if i'm lucky.... i've 5 in all u mentioned...still find rmo problems difficult Sarthak Rath · 1 year, 8 months ago

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@Satyajit Mohanty Oh! Thanks for your advice! Swapnil Das · 1 year, 10 months ago

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Comment deleted Jun 18, 2015

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@Swapnil Das Please dont discuss here. Nihar Mahajan · 1 year, 11 months ago

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Well, @Rajdeep Dhingra does FIITJEE prepare for RMO and NSEJS? Swapnil Das · 1 year, 11 months ago

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@Swapnil Das It makes U prepare for NSEJS but only a little for RMO. Rajdeep Dhingra · 1 year, 11 months ago

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@Rajdeep Dhingra Then I should join FIITJEE next year itself! Swapnil Das · 1 year, 11 months ago

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@Sravanth Chebrolu Hey Sravanth, Have you posted any problems on Projectile motion? Can you post some? Swapnil Das · 1 year, 11 months ago

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@Swapnil Das Yeah. You can check my set Gravity, but presently I am not working much with physics, if you really want some problems I'll post them soon! \(\ddot\smile\) Sravanth Chebrolu · 1 year, 11 months ago

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@Sravanth Chebrolu Thank you! Swapnil Das · 1 year, 11 months ago

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@Swapnil Das Have U tried mine ? Come on Hangouts Rajdeep Dhingra · 1 year, 11 months ago

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@Rajdeep Dhingra I can't come on Hangouts for reasons, and yes I have tried your problems, and the alien Projectile problem was just great! Swapnil Das · 1 year, 11 months ago

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@Swapnil Das Have U tried Pizza War 2 ? Rajdeep Dhingra · 1 year, 11 months ago

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@Rajdeep Dhingra I was mistakened long ago! :( Swapnil Das · 1 year, 11 months ago

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@Swapnil Das I didn't get U. Rajdeep Dhingra · 1 year, 11 months ago

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@Rajdeep Dhingra I did the problem wrongly long ago, I meant. :( Swapnil Das · 1 year, 11 months ago

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@Sravanth Chebrolu Hi! Can you please let me know how are you so good at logic? How can I improve? Swapnil Das · 1 year, 11 months ago

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@Swapnil Das I think you must take suggestions from Nihar or Pi Han Goh sir or Calvin sir or Julian Poon sir etc. . .

They are lot better than me! Sravanth Chebrolu · 1 year, 11 months ago

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@Swapnil Das Remember the thoughts,

Imagination is more important than Knowledge. . .

Practice makes man perfect. . .

I think these two thinks did help me a lot! But, honestly, I don't think I am so good

Here are some tips to improve yourself:

  • I recommend you to play chess if you would like to improve at logic.(I personally love playing the game!)

  • You can practice questions on brilliant! That's the best way to improve yourself.

Sravanth Chebrolu · 1 year, 11 months ago

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@Sravanth Chebrolu Well can we play online chess? Swapnil Das · 1 year, 11 months ago

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@Swapnil Das Ofcourse! Can you provide me the link? But I can't do it today, maybe tomorrow after \(5\) PM? Sravanth Chebrolu · 1 year, 11 months ago

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@Sravanth Chebrolu No, I was just asking if there is an online link for playing chess,.. Swapnil Das · 1 year, 11 months ago

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@Swapnil Das Yes here it (www.chess.com) Rajdeep Dhingra · 1 year, 11 months ago

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@Rajdeep Dhingra Page not found. Swapnil Das · 1 year, 11 months ago

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@Swapnil Das sorry now check. Rajdeep Dhingra · 1 year, 11 months ago

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@Swapnil Das I'm sorry, but I don't know any such website? If you find any do inform me! \(\huge\ddot\smile\) Sravanth Chebrolu · 1 year, 11 months ago

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@Sravanth Chebrolu Sure! Swapnil Das · 1 year, 11 months ago

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@Swapnil Das Thanks! Sravanth Chebrolu · 1 year, 11 months ago

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@Nishant Rai Hello again, Sir!

Can you please suggest me some reference books for Class 11 Physics? Swapnil Das · 1 year, 11 months ago

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@Swapnil Das @Swapnil Das

Read NCERT first, as it will , to some extent, help you in your boards.

After that, do NCERT Exemplar. You can get the pdf's from here . It contain's some very good, high level questions.

If enrolled in some coaching institute, go through their material thoroughly ( Do not jump form one coaching material to some other, they all contain the same thing, except the way they are written). Nishant Rai · 1 year, 11 months ago

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@Nishant Rai @Swapnil Das

I forgot to mention \(\text{Concepts of Physics Vol I and II - H. C. Verma}\). Do it to clear and test your conceptual understanding of the subject. Nishant Rai · 1 year, 11 months ago

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@Nishant Rai @Swapnil Das After that, go for \(\text{Problems in General Physics - I.E.Irodov}\) Nishant Rai · 1 year, 11 months ago

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@Nishant Rai I have already solved from problems from there in class 8. Swapnil Das · 1 year, 11 months ago

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@Nishant Rai pls post the solution to the problems. Thanks! Swapnil Das · 1 year, 11 months ago

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@Swapnil Das @Swapnil Das to all the questions i have posted?? Nishant Rai · 1 year, 11 months ago

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@Nishant Rai No Sir, the Kinematics ones up recently posted. Swapnil Das · 1 year, 11 months ago

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@Swapnil Das Not now, but will post after some members posts their solutions. I want to see how other people are attempting the same question. Nishant Rai · 1 year, 11 months ago

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Come on Hangouts Rajdeep Dhingra · 1 year, 11 months ago

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@Rajdeep Dhingra RD u there! Actually my internet connection has finished and I am on tab, so I will not be able to come before 15th . Swapnil Das · 1 year, 11 months ago

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@Swapnil Das Ohh.... . Rajdeep Dhingra · 1 year, 11 months ago

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@Rajdeep Dhingra I hope you would not mind talking here. Swapnil Das · 1 year, 11 months ago

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@Swapnil Das not at all . I can surely talk here. Rajdeep Dhingra · 1 year, 11 months ago

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@Rajdeep Dhingra Thanks, BTW I am learning Trig and Graphs. Swapnil Das · 1 year, 11 months ago

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Comment deleted Sep 19, 2015

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@Rajdeep Dhingra Well, I'll surely try. Posting prob on tab is a hell. Swapnil Das · 1 year, 11 months ago

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@Nishant Rai Hello Sir! I just wanted to make a humble request. The standard of the problems you post on Brilliant is really great. I just wanted you to post some kinematics problems on B'ant( without trigonometry, but of high standards). Please take my request into consideration, and please help aspiring physicists like me. Swapnil Das · 1 year, 11 months ago

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@Swapnil Das @Swapnil Das Thanks! give me some time, i will surely post questions related to Kinematics. Nishant Rai · 1 year, 11 months ago

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@Nishant Rai Thank you very much! Swapnil Das · 1 year, 11 months ago

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Where did your Einstein go? Nihar Mahajan · 1 year, 11 months ago

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@Nihar Mahajan Haha, well which one do you like? The original pic or the Einstein? Swapnil Das · 1 year, 11 months ago

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@Swapnil Das Of course , Einstein. Nihar Mahajan · 1 year, 11 months ago

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@Nihar Mahajan Then I shall change it. Swapnil Das · 1 year, 11 months ago

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U called me ? Rajdeep Dhingra · 1 year, 11 months ago

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@Rajdeep Dhingra Yes, pls be my trig teacher and tell me how to start. Swapnil Das · 1 year, 11 months ago

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@Swapnil Das Just read 11th NCERT. It's great. Rajdeep Dhingra · 1 year, 11 months ago

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@Rajdeep Dhingra Will DAT be enough for both physics and math? Swapnil Das · 1 year, 11 months ago

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@Swapnil Das For physics it would be. But if U mean Problem Solving in Maths then U can practice from brilliant.

P.S - For NSEJS it is enough. Rajdeep Dhingra · 1 year, 11 months ago

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@Rajdeep Dhingra in which class u r Dev Sharma · 1 year, 7 months ago

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@Dev Sharma 9th, Can you hangout me in G+? Swapnil Das · 1 year, 7 months ago

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@Swapnil Das bro, just email me your message... Ok?? Dev Sharma · 1 year, 7 months ago

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@Dev Sharma Aahh.. sure. I thought we could discuss Olympiad problems in the brilliant community we have made in g+. Swapnil Das · 1 year, 7 months ago

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@Rajdeep Dhingra Thanks , Sir! Swapnil Das · 1 year, 11 months ago

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@Sravanth Chebrolu Hey bro! actually the answer to the second question asking for remainder is 46. It is given in my answer key and I solved it too. Swapnil Das · 1 year, 11 months ago

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@Swapnil Das Can you ex plain that? Sravanth Chebrolu · 1 year, 11 months ago

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@Sravanth Chebrolu The last expression comes as x^2 -13x + 32 = f(x) Swapnil Das · 1 year, 11 months ago

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@Swapnil Das Understood! Dividing it by \((x+1)\) the remainder is, \[f(-1):(-1)^2-13(-1)+32 \\ =1+13+32 \\ =\boxed{46}\] Sravanth Chebrolu · 1 year, 11 months ago

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@Sravanth Chebrolu Well, If u get some free time, Please post some problems on Newton's Sums. Swapnil Das · 1 year, 11 months ago

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@Swapnil Das Sure! But recently I am working on Combinatorics, I see to that very soon! I am building a new set don't miss it! Sravanth Chebrolu · 1 year, 11 months ago

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@Sravanth Chebrolu I will surely try to solve them and also popularize the set! Swapnil Das · 1 year, 11 months ago

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@Swapnil Das Thanks! But, I think I must leave now. See you soon! bye! Sravanth Chebrolu · 1 year, 11 months ago

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@Swapnil Das Oh! Yes. Sorry for leading you the wrong way.

The new function is actually, \(f(x):x^2-13x+32\)! And that when divided by \((x+1)\) leaves \(46\). Sravanth Chebrolu · 1 year, 11 months ago

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@Sravanth Chebrolu No sorry in Friendship! ( if you accept me one) Swapnil Das · 1 year, 11 months ago

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@Swapnil Das Of course! You are by best friend on Brilliant! Who's understood me as perfectly as possible. Sravanth Chebrolu · 1 year, 11 months ago

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@Sravanth Chebrolu Oh, Thanks! I thought U would get frustrated by my foolishness! Swapnil Das · 1 year, 11 months ago

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@Swapnil Das Never! I am guy of very high patience. Sravanth Chebrolu · 1 year, 11 months ago

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@Sravanth Chebrolu That is really nice! Swapnil Das · 1 year, 11 months ago

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@Nihar Mahajan Do you wanna become a Mathematician? Swapnil Das · 1 year, 11 months ago

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@Swapnil Das No I wanna be an Engineer. Nihar Mahajan · 1 year, 11 months ago

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Thank you @Sandeep Bhardwaj Sir for kindly contributing to the logic section! Swapnil Das · 1 year, 11 months ago

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@Noel Lo Thanks for liking my prob! Swapnil Das · 1 year, 11 months ago

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@Swapnil Das Thank you also for supporting my Logic Puzzle on the five siblings! Noel Lo · 1 year, 11 months ago

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@Noel Lo My pleasure! @Noel Lo Swapnil Das · 1 year, 11 months ago

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@Swapnil Das No worries! There are two other versions of the logic puzzle! The links for both are in the problem you just solved! Enjoy! Noel Lo · 1 year, 11 months ago

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@Noel Lo which problem? can i get the link? Sarthak Rath · 1 year, 11 months ago

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@Sarthak Rath Go to explore! @Sarthak Rath Swapnil Das · 1 year, 11 months ago

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@Ruchin Shroff Hello! Thanks for following me! R U new to Brilliant.org? Swapnil Das · 2 years ago

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@Swapnil Das Ya Just Registered at brilliant.org Ruchin Shroff · 2 years ago

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what happened to first message board? Sarthak Rath · 2 years ago

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@Sarthak Rath As to every messageboard, It died after two weeks! Swapnil Das · 2 years ago

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@Swapnil Das ???? Sarthak Rath · 2 years ago

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@Sarthak Rath No notice of notes after 2 weeks! It's a Brilliant ritual! Swapnil Das · 2 years ago

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@Swapnil Das i reall don't understand! i have created a new messageboard so i want to know. Sarthak Rath · 2 years ago

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@Sarthak Rath Your messageboard would be forgotten after 2 weeks! Swapnil Das · 2 years ago

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@Swapnil Das by whom and how??? also u stay at my hometown! bhubaneshwar! Sarthak Rath · 2 years ago

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@Sarthak Rath Ya! I do stay there! By the Brilliant Community as other important notes will bury your MB down! Swapnil Das · 2 years ago

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@Swapnil Das oh! u know odia? Sarthak Rath · 2 years ago

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@Sarthak Rath Obviously@Sarthak Rath Swapnil Das · 2 years ago

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What is your favourite technique in all of mathematics ? Karthik Venkata · 2 years ago

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@Karthik Venkata I love Fermat's Infinite Descent and also Simon's Favorite Factoring Trick. Arian Tashakkor · 2 years ago

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@Karthik Venkata Till now, my favourite is Fermat's little theorem.

What about you? Swapnil Das · 2 years ago

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@Swapnil Das My favourite techniques are Induction and Invariance Principle.

By the way, I meant techniques, not theorems.

Karthik Venkata · 2 years ago

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@Karthik Venkata If you ask about techniques, then induction will be my favourite! Swapnil Das · 2 years ago

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I have completed your set, but I think that you should mention that g=9.8,one can not take it 10 Parth Lohomi · 2 years ago

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@Parth Lohomi Thank U! Gonna change it in 2 hours( Eating egg roll)! Swapnil Das · 2 years ago

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@Swapnil Das It takes two hours for you to eat an egg roll? :O :O Mehul Arora · 2 years ago

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@Mehul Arora Nope, it was just a lengthy excuse! Swapnil Das · 2 years ago

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@Mehul Arora Maybe a Jumbo one :P ..... Karthik Venkata · 2 years ago

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@Karthik Venkata Or maybe he is a "snail" eater XD Mehul Arora · 2 years ago

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@Karthik Venkata Well, That could be possible :P XD Mehul Arora · 2 years ago

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Cheers! XD Mehul Arora · 2 years ago

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The most genuine question to start: Do you like Carrots? :P Nihar Mahajan · 2 years ago

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@Nihar Mahajan But not too much han! ( No scope to call me a rabbit!) Swapnil Das · 2 years ago

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@Nihar Mahajan Well...., Yes! Swapnil Das · 2 years ago

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You are a genius!! Parth Lohomi · 2 years ago

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@Parth Lohomi This is the comment you listen from day to night! Swapnil Das · 2 years ago

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