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If f and g are continuous [0,a) satisfying f(x) = f(a-x) and g(x)+ g(a-x) = 2 then, `int_0^(a) f(x) g(x) dx =`

A

`int_0^(a) g(x) dx`

B

1

C

`int_0^(a) f(x) dx`

D

44228

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The correct Answer is:
C
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