Chemical Engineering > GATE 2014 > Complex Analysis

Contributed by: Dr. Sarah Chen

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If f*(x) is the complex conjugate of f(x)=cos(x)+isin(x), then for real a and b, ∫_a^bf*(x)f(x)dx is ALWAYS

A

positive

B

negative

C

real

D

imaginary

Check Answer

Explanation

Correct : c

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