ALGEBRA - Jamb Mathematics Past Questions and Answers

Question 486:

• JAMB 2009

Determine the value of x for which (x\(^2\) - 1) > 0

A. X < -1 or x > 1
B. -1 < x < 1
C. X > 0
D. X < -1

Question 487:

• JAMB 2009

Find the range of values of x for which 3x - 7 \(\leq\) 0 and x + 5 > 0

A. -5 < x < \(\frac{7}{3}\)
B. -5 \(\leq\) x \(\leq\) \(\frac{7}{3}\)
C. -5 < x \(\leq\) \(\frac{7}{3}\)
D. -5 \(\leq\) x < \(\frac{7}{3}\)

Question 488:

• JAMB 2009

The sum of the first n terms of the arithmetic progression 5, 11, 17, 23, 29, 35, ... is

A. N(3n - 0.5)
B. N(3n + 2)
C. N(3n + 2.5)
D. N(3n + 5)

Question 489:

• JAMB 2009

Find to infinity, the sum of the sequence \(1, \frac{9}{10}, \left(\frac{9}{10}\right)^2, \left(\frac{9}{10}\right)^3,.....\)

A. 10
B. 9
C. ¹⁰/₉
D. ⁹/₁₀

Question 490:

• JAMB 2009

If m * n = n - (m+2) for any real number m and n find he value of 3*(-5)

A. -6
B. -8
C. -10
D. -12