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If f(x)=int(-1)^(x)|t|dt, then for any x...

If `f(x)=int_(-1)^(x)|t|dt`, then for any `xge0.f(x)` is equal to

A

`(1)/(2)(1-x^(2))`

B

`1-x^(2)`

C

`(1)/(2)(1+x^(2))`

D

`1+x^(2)`

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