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If f(x)=xe^(x(1-x)) , then f(x) is(a) in...

If `f(x)=xe^(x(1-x))` , then `f(x)` is(a) increasing on `[−1/2,1]` (b) decreasing on R (c) increasing on R (d) decreasing on `[−1/2,1]`

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