Mathematics JAMB Past Questions

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1081

If \(\cos^2 \theta + \frac{1}{8} = \sin^2 \theta\), find \(\tan \theta\).

A. 3
B. \(\frac{3\sqrt{7}}{7}\)
C. 3\(\sqrt{7}\)
D. \(\sqrt{7}\)

View Answer & Discuss (2) JAMB 1988

1082

If a metal pipe 10cm long has an external diameter of 12cm and a thickness of 1cm find the volume of the metal used in making the pipe

A. 120\(\pi\)cm³
B. 110\(\pi\)cm³
C. 60\(\pi\)cm³
D. 50\(\pi\)cm³

View Answer & Discuss (1) JAMB 1988

1083

PQR is a triangle in which PQ = 10cm and QPR = 60^oS is a point equidistant from P and Q. Also S is a point equidistant from PQ and PR. If U is the foot of the perpendicular from S on PR, find the length SU in cm to one decimal place

A. 2.7
B. 4.33
C. 3.1
D. 3.3

View Answer & Discuss (3) JAMB 1988

1084

If x and y represent the mean and the median respectively of the following set of numbers 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, find the \(\frac{x}{y}\) correct to one decimal place