A.) Find all critical numbers for the function f(x)= 2 sin x-x for 0 < x< pi B.) Find the extrema and extreme values of f(x)= x/x^2+1

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A.) Find all critical numbers for the function f(x)= 2 sin x-x for 0 < x< pi B.) Find the extrema and extreme values of f(x)= x/x^2+1

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