If the sum of the 8th and 9th terms of an arithmetic progression is 72 and the 4th term is -6, find the common difference

The solutions of x2 - 2x - 1 = 0 are the points of intersection of two graphs. if one of the graphs is y = 2 + x - x2, find the second graph

For what values of x is the curve y = \(\frac{x^2 + 3}{x + 4}\) decreasing?

What is the solution of the equation x2 - x - 1 + 0?

Simplify \(\frac{x - y}{x^{\frac{1}{3}} - x^{\frac{1}{3}}}\)

Factorize completely (x2 + x)2 - (2x + 2)2

If (g(y)) = \(\frac{y - 3}{11}\) + \(\frac{11}{y^2 - 9}\). what is g(y + 3)?

if a = -3, b = 2, c = 4, evaluate \(\frac{a^3 - b^3 - c^{\frac{1}{2}}}{b - a - c}\)

If x varies inversely as the cube root of y and x = 1 when y = 8, find y when x = 3

If \(\frac{1}{p}\) = \(\frac{a^2 + 2ab + b^2}{a - b}\) and \(\frac{l}{q}\) = \(\frac{a + b}{a^2 - 2ab + b^2}\) Find \(\frac{p}{q}\)

If cos 60o = 1/2, which of the following angle has cosine of -1/2?

1988 JAMB UTME Mathematics Past Questions