WAEC Mathematics – Sierra Leone

Question 11

If f(x) = ln(x^2 + 1), what is f'(x)?

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Question 12

Find the sum of the first 10 terms of the arithmetic sequence where the first term is 3 and the common difference is 5.

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Question 13

If P(A) = 0.3 and P(B) = 0.5, with A and B independent events, what is P(A ∩ B)?

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Question 14

If \(A = \{1, 2, 3, 4\}\) and \(B = \{3, 4, 5, 6\}\), what is \(A \cap B\) (the intersection of sets A and B)?

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Question 15

Solve for \(x\) in the quadratic equation \(2x^2 - 4x - 6 = 0\).

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Question 16

Given the inequality \(3x - 5 > 7\), which of the following represents the solution set?

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Question 17

Evaluate \(\log_2 32\).

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Question 18

Find the derivative of \(f(x) = x^3 - 5x^2 + 6x - 2\).

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Question 19

If set A = {1, 2, 3, 4} and set B = {3, 4, 5, 6}, what is the union of sets A and B?

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Question 20

Which of the following inequalities represents the region above the line y = 2x - 3 on a graph?

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