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

## Comments

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TopNewestHello 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, 10 months ago

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– Sarthak Rath · 1 year, 10 months ago

well u've got lvl 4 n u r say'ng u r weak!!Log in to reply

– Rajdeep Dhingra · 1 year, 10 months ago

Me too ! I am also weak in Geometry.Log in to reply

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 · 2 years, 1 month ago

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– Swapnil Das · 2 years, 1 month ago

Thank you very much!Log in to reply

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, 6 months ago

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– Dev Sharma · 1 year, 6 months ago

by cubing it??Log in to reply

– Nihar Mahajan · 1 year, 6 months ago

Correct. :PLog in to reply

– Dev Sharma · 1 year, 6 months ago

what would happen if we multiply it to zero? would it die!?Log in to reply

@Swapnil Das will arrange its funeral :) – Nihar Mahajan · 1 year, 6 months ago

Yes and thenLog in to reply

– Swapnil Das · 1 year, 6 months ago

Lol, but you have to promise to pay the expenses :PLog in to reply

@Joy Patel Instant action, isn't it? – Swapnil Das · 1 year, 7 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, 7 months ago

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Why dont you come on fb? – Dev Sharma · 1 year, 9 months ago

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– Swapnil Das · 1 year, 6 months ago

I usually avoid social distraction and adore isolation with mathematics.Log in to reply

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

Khang Nguyen Thanh – Swapnil Das · 1 year, 11 months ago

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@Khang Nguyen Thanh – Rajdeep Dhingra · 1 year, 10 months ago

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@Satyajit Mohanty Namaskar , Kemiti Accha? – Swapnil Das · 2 years ago

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– Satyajit Mohanty · 2 years ago

Bhala Achi :D Odia re katha hele non-Odia loka bujhi paribeni :PLog in to reply

– Swapnil Das · 2 years ago

Na bujhantu , aamar kana jauchi! Aapanankar Ganit kete badhiya! Aapana Rmo re qualify karithile ki?Log in to reply

– Satyajit Mohanty · 2 years ago

Yeah! In 2013. I was the State Topper Even. I was studying in Rajasthan back then.Log in to reply

@Satyajit Mohanty – Swapnil Das · 2 years ago

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– Satyajit Mohanty · 2 years ago

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 :)Log in to reply

– Sarthak Rath · 1 year, 10 months ago

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 difficultLog in to reply

– Swapnil Das · 2 years ago

Oh! Thanks for your advice!Log in to reply

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– Nihar Mahajan · 2 years, 1 month ago

Please dont discuss here.Log in to reply

Well, @Rajdeep Dhingra does FIITJEE prepare for RMO and NSEJS? – Swapnil Das · 2 years, 1 month ago

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– Rajdeep Dhingra · 2 years, 1 month ago

It makes U prepare for NSEJS but only a little for RMO.Log in to reply

– Swapnil Das · 2 years, 1 month ago

Then I should join FIITJEE next year itself!Log in to reply

@Sravanth Chebrolu Hey Sravanth, Have you posted any problems on Projectile motion? Can you post some? – Swapnil Das · 2 years, 1 month ago

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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 · 2 years, 1 month ago

Yeah. You can check my setLog in to reply

– Swapnil Das · 2 years, 1 month ago

Thank you!Log in to reply

– Rajdeep Dhingra · 2 years, 1 month ago

Have U tried mine ? Come on HangoutsLog in to reply

– Swapnil Das · 2 years, 1 month ago

I can't come on Hangouts for reasons, and yes I have tried your problems, and the alien Projectile problem was just great!Log in to reply

Pizza War 2 ? – Rajdeep Dhingra · 2 years, 1 month ago

Have U triedLog in to reply

– Swapnil Das · 2 years, 1 month ago

I was mistakened long ago! :(Log in to reply

– Rajdeep Dhingra · 2 years, 1 month ago

I didn't get U.Log in to reply

– Swapnil Das · 2 years, 1 month ago

I did the problem wrongly long ago, I meant. :(Log in to reply

@Sravanth Chebrolu Hi! Can you please let me know how are you so good at logic? How can I improve? – Swapnil Das · 2 years, 1 month ago

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They are lot better than me! – Sravanth Chebrolu · 2 years, 1 month ago

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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

chessif 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.

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– Swapnil Das · 2 years, 1 month ago

Well can we play online chess?Log in to reply

– Sravanth Chebrolu · 2 years, 1 month ago

Ofcourse! Can you provide me the link? But I can't do it today, maybe tomorrow after \(5\) PM?Log in to reply

– Swapnil Das · 2 years, 1 month ago

No, I was just asking if there is an online link for playing chess,..Log in to reply

– Rajdeep Dhingra · 2 years, 1 month ago

Yes here it (www.chess.com)Log in to reply

– Swapnil Das · 2 years, 1 month ago

Page not found.Log in to reply

– Rajdeep Dhingra · 2 years, 1 month ago

sorry now check.Log in to reply

– Sravanth Chebrolu · 2 years, 1 month ago

I'm sorry, but I don't know any such website? If you find any do inform me! \(\huge\ddot\smile\)Log in to reply

– Swapnil Das · 2 years, 1 month ago

Sure!Log in to reply

– Sravanth Chebrolu · 2 years, 1 month ago

Thanks!Log in to reply

@Nishant Rai Hello again, Sir!

Can you please suggest me some reference books for Class 11 Physics? – Swapnil Das · 2 years, 1 month ago

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@Swapnil Das

Read

NCERTfirst, 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 · 2 years, 1 month ago

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@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 · 2 years, 1 month ago

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@Swapnil Das After that, go for \(\text{Problems in General Physics - I.E.Irodov}\) – Nishant Rai · 2 years, 1 month ago

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– Swapnil Das · 2 years, 1 month ago

I have already solved from problems from there in class 8.Log in to reply

@Nishant Rai pls post the solution to the problems. Thanks! – Swapnil Das · 2 years, 1 month ago

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@Swapnil Das to all the questions i have posted?? – Nishant Rai · 2 years, 1 month ago

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– Swapnil Das · 2 years, 1 month ago

No Sir, the Kinematics ones up recently posted.Log in to reply

– Nishant Rai · 2 years, 1 month ago

Not now, but will post after some members posts their solutions. I want to see how other people are attempting the same question.Log in to reply

Come on Hangouts – Rajdeep Dhingra · 2 years, 1 month ago

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– Swapnil Das · 2 years, 1 month ago

RD u there! Actually my internet connection has finished and I am on tab, so I will not be able to come before 15th .Log in to reply

– Rajdeep Dhingra · 2 years, 1 month ago

Ohh.... .Log in to reply

– Swapnil Das · 2 years, 1 month ago

I hope you would not mind talking here.Log in to reply

– Rajdeep Dhingra · 2 years, 1 month ago

not at all . I can surely talk here.Log in to reply

– Swapnil Das · 2 years, 1 month ago

Thanks, BTW I am learning Trig and Graphs.Log in to reply

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try. Posting prob on tab is a hell. – Swapnil Das · 2 years, 1 month agoLog in to reply

@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 · 2 years, 1 month ago

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@Swapnil Das Thanks! give me some time, i will surely post questions related to Kinematics. – Nishant Rai · 2 years, 1 month ago

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– Swapnil Das · 2 years, 1 month ago

Thank you very much!Log in to reply

Where did your Einstein go? – Nihar Mahajan · 2 years, 1 month ago

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– Swapnil Das · 2 years, 1 month ago

Haha, well which one do you like? The original pic or the Einstein?Log in to reply

– Nihar Mahajan · 2 years, 1 month ago

Of course , Einstein.Log in to reply

– Swapnil Das · 2 years, 1 month ago

Then I shall change it.Log in to reply

U called me ? – Rajdeep Dhingra · 2 years, 1 month ago

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– Swapnil Das · 2 years, 1 month ago

Yes, pls be my trig teacher and tell me how to start.Log in to reply

– Rajdeep Dhingra · 2 years, 1 month ago

Just read 11th NCERT. It's great.Log in to reply

– Swapnil Das · 2 years, 1 month ago

Will DAT be enough for both physics and math?Log in to reply

P.S - For NSEJS it is enough. – Rajdeep Dhingra · 2 years, 1 month ago

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– Dev Sharma · 1 year, 9 months ago

in which class u rLog in to reply

– Swapnil Das · 1 year, 9 months ago

9th, Can you hangout me in G+?Log in to reply

– Dev Sharma · 1 year, 9 months ago

bro, just email me your message... Ok??Log in to reply

– Swapnil Das · 1 year, 9 months ago

Aahh.. sure. I thought we could discuss Olympiad problems in the brilliant community we have made in g+.Log in to reply

– Swapnil Das · 2 years, 1 month ago

Thanks , Sir!Log in to reply

@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 · 2 years, 1 month ago

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– Sravanth Chebrolu · 2 years, 1 month ago

Can you ex plain that?Log in to reply

– Swapnil Das · 2 years, 1 month ago

The last expression comes as x^2 -13x + 32 = f(x)Log in to reply

– Sravanth Chebrolu · 2 years, 1 month ago

Understood! Dividing it by \((x+1)\) the remainder is, \[f(-1):(-1)^2-13(-1)+32 \\ =1+13+32 \\ =\boxed{46}\]Log in to reply

– Swapnil Das · 2 years, 1 month ago

Well, If u get some free time, Please post some problems on Newton's Sums.Log in to reply

Combinatorics, I see to that very soon! I am building a new set don't miss it! – Sravanth Chebrolu · 2 years, 1 month agoLog in to reply

– Swapnil Das · 2 years, 1 month ago

I will surely try to solve them and also popularize the set!Log in to reply

– Sravanth Chebrolu · 2 years, 1 month ago

Thanks! But, I think I must leave now. See you soon! bye!Log in to reply

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

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– Swapnil Das · 2 years, 1 month ago

No sorry in Friendship! ( if you accept me one)Log in to reply

– Sravanth Chebrolu · 2 years, 1 month ago

Of course! You are by best friend on Brilliant! Who's understood me as perfectly as possible.Log in to reply

– Swapnil Das · 2 years, 1 month ago

Oh, Thanks! I thought U would get frustrated by my foolishness!Log in to reply

patience. – Sravanth Chebrolu · 2 years, 1 month agoLog in to reply

– Swapnil Das · 2 years, 1 month ago

That is really nice!Log in to reply

@Nihar Mahajan Do you wanna become a Mathematician? – Swapnil Das · 2 years, 1 month ago

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– Nihar Mahajan · 2 years, 1 month ago

No I wanna be an Engineer.Log in to reply

Thank you @Sandeep Bhardwaj Sir for kindly contributing to the logic section! – Swapnil Das · 2 years, 1 month ago

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@Noel Lo Thanks for liking my prob! – Swapnil Das · 2 years, 1 month ago

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– Noel Lo · 2 years, 1 month ago

Thank you also for supporting my Logic Puzzle on the five siblings!Log in to reply

@Noel Lo – Swapnil Das · 2 years, 1 month ago

My pleasure!Log in to reply

– Noel Lo · 2 years, 1 month ago

No worries! There are two other versions of the logic puzzle! The links for both are in the problem you just solved! Enjoy!Log in to reply

– Sarthak Rath · 2 years, 1 month ago

which problem? can i get the link?Log in to reply

@Sarthak Rath – Swapnil Das · 2 years, 1 month ago

Go to explore!Log in to reply

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

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– Ruchin Shroff · 2 years, 2 months ago

Ya Just Registered at brilliant.orgLog in to reply

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

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– Swapnil Das · 2 years, 2 months ago

As to every messageboard, It died after two weeks!Log in to reply

– Sarthak Rath · 2 years, 2 months ago

????Log in to reply

– Swapnil Das · 2 years, 2 months ago

No notice of notes after 2 weeks! It's a Brilliant ritual!Log in to reply

– Sarthak Rath · 2 years, 2 months ago

i reall don't understand! i have created a new messageboard so i want to know.Log in to reply

– Swapnil Das · 2 years, 2 months ago

Your messageboard would be forgotten after 2 weeks!Log in to reply

– Sarthak Rath · 2 years, 2 months ago

by whom and how??? also u stay at my hometown! bhubaneshwar!Log in to reply

– Swapnil Das · 2 years, 2 months ago

Ya! I do stay there! By the Brilliant Community as other important notes will bury your MB down!Log in to reply

– Sarthak Rath · 2 years, 2 months ago

oh! u know odia?Log in to reply

@Sarthak Rath – Swapnil Das · 2 years, 2 months ago

ObviouslyLog in to reply

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

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– Arian Tashakkor · 2 years, 2 months ago

I love Fermat's Infinite Descent and also Simon's Favorite Factoring Trick.Log in to reply

What about you? – Swapnil Das · 2 years, 2 months ago

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– Swapnil Das · 2 years, 2 months ago

If you ask about techniques, then induction will be my favourite!Log in to reply

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, 2 months ago

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– Swapnil Das · 2 years, 2 months ago

Thank U! Gonna change it in 2 hours( Eating egg roll)!Log in to reply

– Mehul Arora · 2 years, 2 months ago

It takes two hours for you to eat an egg roll? :O :OLog in to reply

– Swapnil Das · 2 years, 2 months ago

Nope, it was just a lengthy excuse!Log in to reply

– Karthik Venkata · 2 years, 2 months ago

Maybe a Jumbo one :P .....Log in to reply

– Mehul Arora · 2 years, 2 months ago

Or maybe he is a "snail" eater XDLog in to reply

– Mehul Arora · 2 years, 2 months ago

Well, That could be possible :P XDLog in to reply

Cheers! XD – Mehul Arora · 2 years, 2 months ago

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

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– Swapnil Das · 2 years, 2 months ago

But not too much han! ( No scope to call me a rabbit!)Log in to reply

– Swapnil Das · 2 years, 2 months ago

Well...., Yes!Log in to reply

You are a genius!! – Parth Lohomi · 2 years, 2 months ago

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– Swapnil Das · 2 years, 2 months ago

This is the comment you listen from day to night!Log in to reply