Jamb Mathematics Past Questions For Year 1988
Question 6
If (g(y)) = \(\frac{y - 3}{11}\) + \(\frac{11}{y^2 - 9}\). what is g(y + 3)?
- A. \(\frac{y}{11} + \frac{11}{y(y + 6)}\)
- B. \(\frac{y}{11} + \frac{11}{y(y + 3)}\)
- C. \(\frac{y + 30}{11} + \frac{11}{y(y + 3)}\)
- D. \(\frac{y + 3}{11} + \frac{11}{y(y - 6)}\)
Question 7
Factorize completely \((x^2 + x)^2 - (2x + 2)^2\)
- A. (x + 1)(x + 2)(x - 2)
- B. (x + 1) 2(x + 2) (x - 2)
- C. (x + 1)2 (x + 2)2
- D. (x + 1)2 (x + 2)(x - 2)
Question 8
Simplify \(\frac{x - y}{x^{\frac{1}{3}} - x^{\frac{1}{3}}}\)
- A. x2 + xy + y2
- B. x\(\frac{2}{3}\) + x \(\frac{1}{3}\) + y\(\frac{2}{3}\)
- C. x\(\frac{2}{3}\) - x\(\frac{1}{3}\)y\(\frac{2}{3}\)
- D. y\(\frac{2}{3}\)
Question 9
What is the solution of the equation \(x^2 - x - 1 0\)?
- A. x = 1.6 and x = -0.6
- B. x = -1.6 and x = 0.6
- C. x = 1.6 and x = 0.6
- D. x = -1.6 and x = -0.6
Question 10
For what values of x is the curve y = \(\frac{x^2 + 3}{x + 4}\) decreasing?
- A. -3
- B. -3 \(\geq\) x
- C. 0
- D. 0 \(\leq\) x \(\leq\) 3
