Again out of curiousity, I am posting this note adressed to all my friends who are giving 12th Boards.

How's your maths paper and how much are you expecting.

Again one can discuss anything here.

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## Comments

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TopNewestThe paper was easy but I had only 5 minutes left to revise. I think I got every question correct with all necessary steps but as I couldn't revise properly, might lose some marks in careless mistakes. Definitely 95+. Hoping for 98-100.

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Does anyone have I.P previous year question paper along with the solution(all sets). Can anyone send the link regarding the same?

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Can anyone post solution to \(\displaystyle\int \frac{x\cos x+\sin x \mathrm dx}{x(x+\sin x)}\)

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I know the answer to the problem with the minus sign in the numerator but not this one.

I have the answer as :

\[\displaystyle I = \int { \frac { x\cos { x } -\sin { x } }{ x(x+\sin { x } ) } dx } = \int { \frac { (x\cos { x } +x)-(x+\sin { x } ) }{ x(x+\sin { x } ) } dx }\]

\[ I = \ln { (1+\dfrac { \sin { x } }{ x } ) } \]

Sorry but I don't have the answer to your problem.

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@Ronak Agarwal @Vraj Mehta @Azhaghu Roopesh M @Mvs Saketh

Guys, can you please tell me your question paper codes? Not just the set number, but also the code, mine is 65/2/MT. I have been running into a lot of complaints about the exam wherever I turn, even in the newspaper, there were two separate articles about it. Please do reply.

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65/1/B

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Mine 65/1/A

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Hi

The code number was : 65/3/A .

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Here is the link to my paper: 65/2/MT

@Azhaghu Roopesh M @Siddhartha Srivastava @Ronak Agarwal @Mvs Saketh This paper must be the easiest one.

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See the note that I posted , my paper was relatively lengthy . I'm sure you'll agree .

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I didn't give the exam, but I've seen one set 65/2/2/F. One question was wrong in it. Q20 first part.

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What the hell dude ??? You've got to be kidding me !

Are you sure that the link you've provided is the paper of this year ? That one's toooooo simple .

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Here's the link . Check it out :)

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I'm expecting above 90 and i think, paper wasn't tough but yes, bit lengthy.

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Well, everyone can pretty much add 2-3 marks to their expected score. http://www.thehindu.com/news/national/cbse-maths-exam-board-mulls-grace-marking/article7011799.ece?mstac=0

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@Ronak Agarwal

Well , it seems you'll get 101/100 right ? :D

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I am expecting above 90. The sad part is i realized two of my mistakes yesterday only. The paper was kind of moderate but difficult as compared to last year's paper.

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Disastrous. I don't know why but I skipped past the binary operations 6 marker. I literally didn't see it. And the sad thing is that it probably was the easiest 6 marker of the lot. Expecting anywhere between 85-90.

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Yes, you'll definitely get 90

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Hmm, lets see.

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Hmm , I think I'll get between 85-90 (yes , I had a definitely bad outing there)

But I'm just focusing on JEE Advanced right now , so I think it's no big deal .

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Definitely 88-90 ,Will only loss marks if there are any silly mistakes or calculation error..

Also On the difficulty of the paper,for us preparing for advance the paper was not that challenging but for the ones who have taken Maths as A fifth subject it was a disaster..

I remember a girl seeing a girl crying during the exam..

Roopesh Must have seen it too.We were in the same room..:3 :3

But All left is IP which is a very interesting Subject..What are you planning to Study???Ronak Agarwal And Roopesh..

Since I know only two of you having taken IP on Brilliant..

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No , I didn't see anyone crying . You see I had my own problems to deal with .

Would you mind writing the initial of the one who was crying ?

Seriously , YOU are going to study IP ?? I am just going to read the Chapters 1,2 and the last Chapter (was it 16th ?)

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The paper was very easy for me and almost all of my friends and classmates. I do not know why people are saying that it was tough. Strongly believe that there was some difference between my question paper and yours. My qp code is 65/2/MT. A lot of my friends finished almost 30 min before time. @Ronak Agarwal

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I am talking about CBSE board paper, people are calling that tough . Are you from CBSE board or some other one.

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Oh my god! Of course I'm in CBSE!

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Raghav and I are from CBSE.

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Just wanted to ask, are there people out here who are having Physical Education as their 5th subject ?

If yes, then please tell how are you preparing for the exam ?? I am just reading the chapters from the book, will it do ?

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I think, I will definitely score in between 95 and 99.

Not sure if I have done the question of getting expression 'A^2 -5A+4I' given matrix 'A' correctly, I think I have copied 'A' wrongly from the question paper.

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definitely above 90, only place where i might lose marks are the question which was asked to be solved by matrix method, Though i did solve it using matrices only by some how converting it into a matrix problem . what about you?

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I am expecting around 99/100 if everything I have written contained no silly mistakes well 1 marks I am losing because in a 6 marks question after completing solving at last I wrote the answer as \(2(\sqrt{2}+\sqrt{2})=2\sqrt{2}\)

Also is this your actual photo, you have as your profile pic.

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Can you please tell question number, i do not remember ever writing \(4 ( {2}^{1/2})\) in answer sheet,

Yes it is, My JEE main profile pic

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You look quite a big boy, your image doesn't look like that of an 17 year old boy.

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Actually, it is camera effect, i am just 174cm long , shorter than you as well perhaps.

And, no, i did the Miscellanious exercices from CBSE before board exam and two to three integration questions were from there only, I do not know why some of these parents demand retest because their kid is an idiot . Infact, i finished it 40 mins ago and rechecked it twice, and they say time was low, infact some were telling me to ask for retest as well

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Both of you are really my "Bhaiyyas" in terms of height . Btw I am 164 cm .

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Also I was not commenting on height, I was commenting about age.

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Comment deleted Mar 19, 2015

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Also teachers at school taught NCERT but I often skipped coming to school and at school also I did my coaching material, that interested me much more that the school stuff.

By not reading NCERT I meant not reading it's textual matter in detail, I did try to read topics that were yet not done in coaching some time before but I can't understand anything,( they have explained it quite badly), still I seriously didn't know about the question in NCERT since I have not solved even a single one of them.

Also I am not genius, since genius people are people like Sheshansh Agarwal( 3 time astronomy gold medalist cleared this year both INCHO , INPHO with a big, big margin), Bhavya Chaudhry( KVPY first rank, Juniour Astronomy gold medalist), and people like you ( your achievements are uncountable).

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First approach I thought to tackle this problem was to cut the sphere into thin discs of finite thickness and calculating the volume and reduce the thickness all the way to zero, this approach was good but I can't handle the summation though, also I can't work up the expression. Finally I decided to learn calculus from basics. But I didn't have any books for reading about this( well I had a handbook that consisted of many formulas I can't understand a single one of them ) hence I again searched up net, and then I found this :

Wikibooks- Calculus.

It nicely started with the concept of functions followed by limits,tangents, derivatives, rules of differentiation,rolle's theorom,lagrange mean value theorom ,application of derivatives in kinematics, and maxima and minima(first derivative and second derivative test) and everything was so interesting( yet I can't understand it clearly)

Finally I started with second part INTEGRATION, it started with riemann sums with a nice introduction and how area is calculated by small strips approach, then came the fundamental theorom of calculus Part 1, Part 2, and the rigorous proofs ( It took me a day to understand the proof of it.), and than proceded with techniques of integration like substitution,by parts, trignometric substitution, partial fractions , trignometric integrals, and all.

Finally I understood the proof of volume of sphere. But till that I have learnt a large lot in calculus, I believe that was in 9 th most probably.

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And yes, questions were not from NCERT.

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Comment deleted Mar 21, 2015

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how much are you expecting, if you assume whatever you attempted and believe that you have done correctly is actually correct.

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@Pratik Shastri ,@Mvs Saketh ,@Raghav Vaidyanathan ,@Vraj Mehta ,@Shashwat Shukla @Azhaghu Roopesh M .

Please comment.

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