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Mathematics Past Questions and Answers

Waec Mathematics Questions

Question 886:

The probabilities of a boy passing English and Mathematics test are x and y respectively. Find the probability of the boy failing both tests

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A 1-(x-y)+xy
B 1-(x+y)-xy
C 1-(x+y)+xy
D 1 - (x - y) + x

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Question 887:

The locus of points equidistant from two intersecting straight lines PQ and PR is

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A A circle centre P radius Q.
B A circle centre P radius PR
C The point of intersection of the perpendicular bisectors of PQ and PR
D The bisector of angle QPR

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Question 888:

Find the equation whose roots are \(-\frac{2}{3}\) and 3

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A 3x²+11x-6=0
B 3x²+7x+6=0
C 3x²-11x-6=0
D 3x²-7x-6=0

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Question 889:

Evaluate Cos 45^o Cos 30^o - Sin 45^o Sin 30^o leaving the answer in surd form

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A \(\frac{\sqrt{2}-1}{2}\)
B \(\frac{\sqrt{3}-\sqrt{2}}{4}\)
C \(\frac{\sqrt{6}-\sqrt{2}}{2}\)
D \(\frac{\sqrt{6}-\sqrt{2}}{4}\)

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Question 890:

In constructing an angle, Olu draws line OX. With centre O and a convenient radius, he draws an arc intersecting OX at P. With centre P and the same radius, he draws an arc intersecting the first arc at Q and finally joins OQ. What is the size of angle POQ so constructed?

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A 90^o
B 75^o
C 60^o
D 45^o

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