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JAMB Mathematics 2023 Objective — Question 18

Question 18 of 40 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2023 Objective paper, with the correct answer and a full explanation.

If y=(2x+2)³, find dy/dx.

A. 3(2x+2)²
B. 6(2x+2)
C. 3(2x+3)
D. 6(2x+2)²Correct

Explanation

Let u=2x+2. dy/dx=3u²×2=6(2x+2)².

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