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If `f: R rarr R` and `g:R rarr R` are one-to-one, real valued functions, then the value of the integral `int_(-pi)^(pi) [f(x)+f(-x)][g(x)-g(-x)]dx =`

A

0

B

`pi`

C

1

D

none of these

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The correct Answer is:
A
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HIMALAYA PUBLICATION-Definite Integrals and its Application-QUESTION BANK
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