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MATHEMATICS

JAMB 2016 - Question 27

Mathematics 2016 JAMB Past Questions - Question 27: Find dy/dx. if y = 2 /3 x^3 - 4 / x

Find dy/dx. if y = 2 /3 x^3 - 4 / x

A: 3x² - 4/x

B: 2x² + 4/x²

C: 3x² + 4/x²

D: 2x² - 4/x

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Correct Answer

Explanation

y = 23 x 3 - 4x dy/dx = 2x^2 - (-4)x^−2 = 2x^2 + 4/x^2