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If `f(x)` is a function such that `f^('')(x) + f(x) = 0 and g(x) = (f(x))^2 + (f'(x))^2 and g(3) = 3` then `g(8) =`

A

`5`

B

`0`

C

`3`

D

`8`

Text Solution

Verified by Experts

The correct Answer is:
C
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