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WAEC Further Mathematics 2020 Question 4

Question 4

Integration

If ∫03 (px2 + 16) dx = 129, find the value of p.

  1. A.9
  2. B.8
  3. C.7
  4. D.6
Show the answer and explanation

Answer: A (9)

Explanation

[px³/3 + 16x] from 0 to 3 = 9p + 48 = 129, so p = 9.