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Mathematics Past Questions and Answers

Jamb Mathematics Questions

Question 6:

Solve the following equations 4x - 3 = 3x + y = x - y = 3, 3x + y = 2y + 5x - 12

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A X = 5, y = 2
B X = 2, y = 5
C X = 5, y = -2
D X = -2, y = -5
E X = -5, y = -2

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Question 7:

In a figure, PQR = 60^o, PRS = 90^o, RPS = 45^o, QR = 8cm. Determine PS

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A 2\(\sqrt{3}\)cm
B 4\(\sqrt{6}\)cm
C 2\(\sqrt{6}\)cm
D 8\(\sqrt{6}\)cm
E 8cm

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Question 8:

Given that cos z = L , whrere z is an acute angle, find an expression for \(\frac{\cot z - \csc z}{\sec z + \tan z}\)

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A \(\frac{1 - L}{1 + L}\)
B \(\frac{L^2 \sqrt{3}}{1 + L}\)
C \(\frac{1 + L^3}{L^2}\)
D \(\frac{L(L - 1)}{1 - L + 1 \sqrt{1 - L^2}}\)

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Question 9:

If 0.0000152 x 0.042 = A x 10⁸, where 1 \(\leq\) A < 10, find A and B

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A A = 9, B = 6.38
B A = 6.38, B = -9
C A = -6.38, B = -9
D A = -9, B = -6.38

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Question 10:

If (x + 2) and (x - 1) are factors of the expression \(Lx^{3} + 2kx^{2} + 24\), find the values of L and k.

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A 1 = -6, k = -9
B 1 = -2, k = 1
C K = -1, 1 = -2
D 1 = 0, k = 1
E K = 0,1 = 6

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