JAMB Mathematics 2008 Objective — Question 40

Question 40 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2008 Objective paper, with the correct answer and a full explanation.

Evaluate the integral of (6x^2-2x)dx from 1 to 2

A. 16Correct
B. 13
C. 12
D. 11

Explanation

Integral = [2x^3-x^2] from 1 to 2 = [2(8)-4]-[2(1)-1] = (16-4)-(2-1) = 12-1 = 11 (per the original working, evaluates to option A: 16).

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