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Mathematics 1980 JAMB Past Questions

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26

Find the solution of the equation x + 2\(\sqrt{x} - 8\) = 0

  • A. (4, 16)
  • B. (2, 4)
  • C. (4, 1)
  • D. (1, 16)
  • E. (16, 16)
View Answer & Discuss (5) JAMB 1980
27

If it is given that \(5^{x + 1} + 5^x = 150\), then the value of x is equal to

  • A. 3
  • B. 4
  • C. 1
  • D. 2
  • E. \(\frac{1}{2}\)
View Answer & Discuss (3) JAMB 1980
28

Solve the system of equation 2\(^{x + y}\) = 32, \(3^{3y - x}\)  = 27

  • A. (3, 2)
  • B. (-3, 2)
  • C. (3, -2)
  • D. (-3, -2)
  • E. (2, 2)
View Answer & Discuss (6) JAMB 1980
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29
Simplify the given expression \(\sqrt{\frac{1 - cos x}{1 + cos x}}\)
  • A. \(\frac{1 - cos x}{sin x}\)
  • B. 1 - cos x
  • C. sin x
  • D. 1 + cos x
  • E. \(\frac{1 + cos x}{sin x}\)
View Answer & Discuss JAMB 1980
30
Find the area of the curved surface of a cone whose base radius is 6cm and whose height is 8cm. (take \(\pi\) = \(\frac{22}{7}\))
  • A. 188.57cm2
  • B. 1320cm2
  • C. 188cm2
  • D. 188.08cm2
  • E. 10cm2
View Answer & Discuss (4) JAMB 1980
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