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If linear function f(x) and g(x) satisfy...

If linear function `f(x)` and `g(x)` satisfy `int[(3x-1)cosx+(1-2x)sinx]dx=f(x)cos x + g(x) sin x+C`, then

A

`f(x)=3(x-1)`

B

`f(x)=3x-5`

C

`g(x)=3(x-1)`

D

`g(x)=3+x`

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The correct Answer is:
C
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