JAMB Mathematics 2025 Objective — Question 19
Question 19 of 40 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2025 Objective paper, with the correct answer and a full explanation.
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Evaluate ∫₁²(3x²-2x+1)dx.
- A. 5Correct
- B. 7
- C. 8
- D. 9
Explanation
∫(3x²-2x+1)dx = x³-x²+x. Evaluating from 1 to 2 gives (8-4+2)-(1-1+1) = 6-1 = 5.
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