Mathematics Past Questions

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1256

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

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

View Answer & Discuss WAEC 2003

1257

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

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

View Answer & Discuss (3) WAEC 2003

1258

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?

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

View Answer & Discuss (2) WAEC 2003

1259

In the diagram /PS/ = 9 cm, /OR/ = 5cm, \(P\hat{S}R = 63^o\) and \(S\hat{P}Q = P\hat{Q}R = 90^o\). Find, correct to the nearest whole number, the area of the trapezium,