Differentiation - Jamb Mathematics Past Questions and Answers

Question 51:

• JAMB 2011

The derivatives of (2x + 1)(3x + 1) is

A. 12x + 1
B. 6x + 5
C. 6x + 1
D. 12x + 5

Question 52:

• JAMB 2011

Find the derivative of \(\frac {\sin\theta}{\cos\theta}\)

A. Sec² \(\theta\)
B. Tan \(\theta\) cosec \(\theta\)
C. Cosec \(\theta\)sec \(\theta\)
D. Cosec²\(\theta\)

Question 53:

• JAMB 2012

If y = x² - \(\frac{1}{x}\), find \(\frac{\delta y}{\delta x}\)

A. 2x - \(\frac{1}{x^2}\)
B. 2x + x²
C. 2x - x²
D. 2x + \(\frac{1}{x^2}\)

Question 54:

• JAMB 2013

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

A. Sin x - cos x
B. Cos x - x sin x
C. Cos x + x sin x
D. Sin x + x cos x

Question 55:

• JAMB 2013

If y = (2x + 2)\(^3\), find \(\frac{\delta y}{\delta x}\)

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