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f(x) = − cos(x^2 ) + 2 sin(x) [1,3.5] 1) find f'(x) and the roots on...

f(x) = − cos(x^2 ) + 2 sin(x) [1,3.5]

1) find f'(x) and the roots on the given interval.

2) find all critical points of f(x) on the given interval.

3) find absolute max and min of f(x) on the given interval.

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