Differentiation - Jamb Mathematics Past Questions and Answers

Question 56:

• JAMB 2014

If y = 4x³ - 2x² + x, find \(\frac{\delta y}{\delta x}\)

A. 8x² - 2x + 1
B. 8x² - 4x + 1
C. 12x² - 2x + 1
D. 12x² - 4x + 1

Question 57:

• JAMB 2014

If y = cos 3x, find \(\frac{\delta y}{\delta x}\)

A. \(\frac{1}{3} \sin 3x\)
B. \(-\frac{1}{3} \sin 3x\)
C. 3 sin 3x
D. -3 sin 3x

Question 58:

• JAMB 2016

Find the derivative of y = ( \(\frac{1}{3}\)X + 6)\(^2\)

A. 2( \(\frac{1}{3}\)X + 6
B. \(\frac{2}{3}\) ( \(\frac{1}{3}\)X + 6)
C. \(\frac{2}{3}\) ( \(\frac{1}{3}\)X + 6)²
D. \(\frac{1}{3}\) ( \(\frac{1}{3}\)X + 6)²

Question 59:

• JAMB 2021

Find the derivative of the function y = 2x\(^2\)(2x - 1) at the point x = -1?

A. 18
B. 16
C. -4
D. -6