Find the intervals in which the function given by is

MATHEMATICS · Multi-part · A Level · Mathematics · Differentiation · Differentiation

Problem

5. Find the intervals in which the function ff given by f(x)=2x3−3x2−36x+7f(x)=2 x^{3}-3 x^{2}-36 x+7 is (a) increasing (b) decreasing

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