Mathematics 2002 Jamb Past Questions and Answers

Question 11 :

• JAMB 2002

Evaluate \(\int \sin 3x \mathrm d x\)

A. (2/3) cos 3x + c
B. (1/3) cos 3x + c
C. (-1/3) cos 3x + c
D. (-2/3) cos 3x + c

Question 12 :

• JAMB 2002

A circle with radius 5cm has its radius increasing at the rate of 0.2m/s. What will be the corresponding increase in the area?

A. 2π
B. 5π
C. π
D. 4π

Question 13 :

• JAMB 2002

If \(y = x^2 - \frac{1}{x}\). find dy/dx

A. 2x - (1/x²)
B. 2x + x²
C. 2x - x²
D. 2x + (1/x²)

Question 14 :

• JAMB 2002

Solve for x in the equation x\(^3\) - 5x\(^2\) - x + 5 = 0

A. 1, - 1, or 5
B. 1, 1, or -5
C. -1, 1, or -5
D. 1, 1, or 5

Question 15 :

• JAMB 2002

The time taken to do a piece of work is inversely proportional to the number of men employed. if it takes 45 men to do a piece of work in 5 days, how long will it take 25 men?

A. 15 days
B. 12 days
C. 5 days
D. 9 days