AP

MATHEMATICS · Multi-part · AP · Calculus AB · Differentiation: Definition and Fundamental Properties · Differentiation: Definition and Fundamental Properties

Problem

Let f(x)=bx4+4x3−12x+7f(x)=bx^{4}+4x^{3}-12x+7. (i) Find f′(x)f'(x). (ii) If f′(1)=0f'(1)=0, determine the value of bb.

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