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Mathematics 1991 JAMB Past Questions

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26
Evaluate x2(x2 - 1)-\(\frac{1}{2}\) - (x2 - 1)\(\frac{1}{2}\)
  • A. (x2 - 1)-\(\frac{1}{2}\)
  • B. (x2 - 1)1
  • C. (x2 - 1)
  • D. (x2 - 1)-1
View Answer & Discuss (4) JAMB 1991
27
Find the gradient of the line passing through the points (-2, 0) and (0, -4)
  • A. 2
  • B. -4
  • C. -2
  • D. 4
View Answer & Discuss JAMB 1991
28
At what value of x is the function y = x2 - 2x - 3 minimum?
  • A. 1
  • B. -1
  • C. -4
  • D. 4
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29

Find the sum of the first 20 terms in an arithmetic progression whose first term is 7 and last term is 117.

  • A. 2480
  • B. 1240
  • C. 620
  • D. 124
View Answer & Discuss JAMB 1991
30
The area of a square is 144 sq cm. Find the length of its diagonal
  • A. 11\(\sqrt{3cm}\)
  • B. 12cm
  • C. 12\(\sqrt{2cm}\)
  • D. 13cm
View Answer & Discuss (4) JAMB 1991
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