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For r=0,1 …..10, Ar,Br "and" Cr denote r...

For r=0,1 …..10, `A_r,B_r "and" C_r` denote respectively , the coefficient of `x^r` in the expasions of `(1+x)^(10),(1+x)^(20) "and " (1+x)^(30)." Then " Sigma_(r=1)^(10) A_r(B_(10)B_(r)-C_(10)A_r)` is equal to -

A

`B_(10)-C_(10)`

B

` A_(10)(B_(10)^(2)-C_(10)A_(10))`

C

0

D

`C_(10)-B_(10)`

Text Solution

Verified by Experts

The correct Answer is:
D
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