Waec Mathematics Past Questions

Question 1656

Given that m = -3 and n = 2 find the value of \(\frac{3n^2 - 2m^3}{m}\)

A. -22
B. -14
C. 14
D. 22

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Question 1657

In the diagram, POR is a circle with center O. ∠QPR = 50°, ∠PQO = 30° and ∠ORP = m. Find m.

A. 20^o
B. 25^o
C. 30^o
D. 50^o

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Question 1658

Calculate the value of Y in the diagram

A. 18^o
B. 42^o
C. 48^o
D. 132^o

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Question 1659

In the diagram above, |XR| = |RY| = |YZ| and ∠XRY = ∠YRZ = 62o, Calculate ∠XYZ

A. 50^o
B. 62^o
C. 112^o
D. 115^o

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Question 1660

If \(tan x = \frac{1}{\sqrt{3}}\), find cos x - sin x such that \(0^o \leq x \leq 90^o\)

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

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