Maths-
General
Easy
Question
Let f : R →R and g : R →R be continuous functions, then the value of 
(f(x) + f(-x)) (g(x) – g(-x)) dx, is equal to
- – 1
- 0
- 1
- None of these
The correct answer is: 0
A function 
is odd if −f(−x)=f(x)⟺f(−x)=−f(x)
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