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IIT JEE Advanced 2010 Paper 2

Section: Mathematics

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Question : 42 of 57

Marks: +1, -0

For r = 0, 1, …, 10, let Ar,Br and Cr denote, respectively, the coefficient of xr in the expansions of (1+x10), (1+x)20 and (1+x)30. Then,

Ar(B10Br−C10Ar) is equal to

[JEE Adv 2010 P2]

B10−C10
A10(B102−C10A10)
0
C10−B10

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