Patrick B. answered • 05/23/19
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f'("x) = -sinx - 3 sec^2(X)
f'(4) = -sin4 - 3 sec^2(4)
= -6.26484787027693235
Katie M.
asked • 05/23/19If f(x)=cosx-3tanx, then f'(4)=?
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