1.

Let f (x) be a twice differentiable function defined on (-oo,oo) such that f (x) =f (2-x)and f '((1)/(2 )) =f' ((1)/(4))=0. Then int _(0) ^(1) f (1-t ) e ^(-cos pit) dt - int _(1) ^(2) f (2-t) e ^(cos pit) dtis equal to :

Answer»

`INT _(0)^(2) f'(t) E ^(COS PIT ) DT`
1
2
`pi`

Answer :A


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