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331
A binary operation Δ is defined by aΔb = a + b + 1 for any numbers a and b. Find the inverse of the real number 7 under the operation Δ, if the identity element is -1
  • A. -7
  • B. -9
  • C. 5
  • D. 9
View Answer & Discuss (4) JAMB 2007
332

The nth term of the sequence \(\frac{3}{2}\), 3, 7, 16, 35, 74 ..... is

  • A. 5 . 2n-2 - n
  • B. 5 . 2n-2 - \(\frac{(n+1)}{2}\)
  • C. 3 . 2n-2
  • D. \(\frac{3n}{2}\)
View Answer & Discuss (1) JAMB 2007
333

Find the sum to infinity of the series \(2+\frac{3}{2}+\frac{9}{8}+\frac{27}{32}+......\)

  • A. 1
  • B. 2
  • C. 8
  • D. 4
View Answer & Discuss (14) JAMB 2007
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
334

Find y, if \(\sqrt{12}-\sqrt{147}+y\sqrt{3} = 0\)

  • A. 5
  • B. 1
  • C. 7
  • D. 3
View Answer & Discuss (4) JAMB 2007
335
If x10 = 12145 find x
  • A. 124
  • B. 121
  • C. 184
  • D. 180
View Answer & Discuss JAMB 2007
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