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Mathematics 1994 JAMB Past Questions

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16
Find the range of values of x for which \(\frac{1}{x}\) > 2 is true
  • A. x < \(\frac{1}{2}\)
  • B. x < 0 or x < \(\frac{1}{2}\)
  • C. 0 < x < \(\frac{1}{2}\)
  • D. 1 < x < 2
View Answer & Discuss JAMB 1994
17
If the 6th term of an arithmetic progression is 11 and the first term is 1, find the common difference.
  • A. \(\frac{12}{5}\)
  • B. \(\frac{5}{3}\)
  • C. -2
  • D. 2
View Answer & Discuss JAMB 1994
18
Find the value of log10 r + log10 r2 + log10 r4 + log10 r8 + log10 r16 + log10 r32 = 63
  • A. 10-1
  • B. 10o
  • C. 10
  • D. 102
View Answer & Discuss (1) JAMB 1994
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19
Find the nth term of the sequence 3, 6, 10, 15, 21.....
  • A. \(\frac{n(n - 1)}{2}\)
  • B. \(\frac{n(n + 1)}{2}\)
  • C. \(\frac{(n + 1)(n + 2)}{2}\)
  • D. n(2n + 1)
View Answer & Discuss (4) JAMB 1994
20
A binary operation \(\oplus\) is defines on the set of all positive integers by a \(\oplus\) b = ab for all positive integers a, b. Which of the following properties does NOT hold?
  • A. closure
  • B. identity
  • C. positive
  • D. inverse
View Answer & Discuss (3) JAMB 1994
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