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Mathematics 1987 JAMB Past Questions

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26
Find the eleventh term of the progression 4, 8, 16.....
  • A. 213
  • B. 212
  • C. 211
  • D. 210
View Answer & Discuss JAMB 1987
27

Three angles of a nonagon are equal and the sum of six other angles is 1110o. Calculate the size of one of the equal angles

  • A. 210o
  • B. 150o
  • C. 105o
  • D. 50o
View Answer & Discuss JAMB 1987
28

Two chords QR and NP of a circle intersect inside the circle at x. If RQP = 37o, RQN = 49o and QPN = 35o, find PRQ

  • A. 35o
  • B. 37o
  • C. 49o
  • D. 59o
View Answer & Discuss (3) JAMB 1987
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29

The sine, cosine and tangent of 210o are respectively

  • A. \(\frac{1}{2}\), \(\frac{\sqrt{3}}{2}\), \(\frac{\sqrt{3}}{2}\)
  • B. \(\frac{1}{2}\), \(\frac{\sqrt{3}}{2}\), \(\frac{\sqrt{3}}{3}\)
  • C. \(\frac{1}{2}\), \(\frac{\sqrt{3}}{2}\), \(\frac{\sqrt{3}}{2}\)
  • D. \(\frac{-1}{2}\), \(\frac{\sqrt{-3}}{2}\), \(\frac{\sqrt{3}}{3}\)
View Answer & Discuss JAMB 1987
30
If tan \(\theta\) = \(\frac{m^2 - n^2}{2mn}\) find sec\(\theta\)
  • A. \(\frac{m^2 + n^2}{(m^2 - n^2)}\)
  • B. \(\frac{m^2 + n^2}{2mn}\)
  • C. \(\frac{mn}{2(m^2 + n^2)}\)
  • D. \(\frac{m^2n^2}{2(m^2 - n^2)}\)
View Answer & Discuss (3) JAMB 1987
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