Mathematics 1978 JAMB Past Questions

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The locus of all points having a distance of 1 unit from each of the two fixed points a and b is

A. a line parallel to the line ab
B. a line perpendicular to the line ab through the mid-point of ab
C. a circle through a and b with centre at the mid-point of ab
D. a circle with centre at a and passes through b
E. a circle in a plane perpendicular to ab and centre at the mid-point of the line ab

View Answer & Discuss JAMB 1978

Without using tables, simplify \(\frac{1n \sqrt{216} - 1n \sqrt{125} - 1n\sqrt{8}}{2(1n3 - 1n5)}\)

View Answer & Discuss (5) JAMB 1978

Simplify \(\frac{(a - \frac{1}{a}) (a^{\frac{4}{3}} + \frac{1}{a^{\frac{2}{3}}})}{a^2 - (\frac{1}{a})^2}\)

View Answer & Discuss (9) JAMB 1978

If x4 - kx3 + 10x2 + lx - 3 is divisible by (x - 1), and if when it is divided by (x + 2) the remainder is 27, find the constants k and l

View Answer & Discuss (1) JAMB 1978

Evaluate without using tables sin(-1290º)

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

View Answer & Discuss (3) JAMB 1978

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