Waec Further Mathematics Past Questions For Year 2021

Question 6

Simplify \(\frac{1}{3}\) log8 + \(\frac{1}{3}\) log 64 - 2 log6

waec 2021

  • A. log \(\frac{2}{7}\)
  • B. log 2
  • C. log \(\frac{2}{9}\)
  • D. log 9
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Question 7

Given that M = \(\begin{pmatrix} 3 & 2 \\ -1 & 4 \end{pmatrix}\) and N = \(\begin{pmatrix} 5 & 6 \\ -2 & -3 \end{pmatrix}\), calculate (3M - 2N)

waec 2021

  • A. \(\begin{pmatrix} 1 & 6 \\ 1 & 18 \end{pmatrix}\)
  • B. \(\begin{pmatrix} -1 & -6 \\ 1 & 18 \end{pmatrix}\)
  • C. \(\begin{pmatrix} 1 & 6 \\ -1 & -18 \end{pmatrix}\)
  • D. \(\begin{pmatrix} -1 & -6 \\ -1 & -18 \end{pmatrix}\)
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Question 8

For what value of k is 4x\(^2\) - 12x + k, a perfect square?

waec 2021

  • A. -9
  • B. \(\frac{-9}{4}\)
  • C. \(\frac{9}{4}\)
  • D. 9
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Question 9

If f(x) = 4x\(^3\) + px\(^2\) + 7x - 23 is divided by (2x -5), the remainder is 7. find the value of p

waec 2021

  • A. -7.0
  • B. -8.0
  • C. -9.6
  • D. 9
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Question 10

If α and β are the roots of 3x\(^2\) - 7x + 6 = 0, find \(\frac{1}{α}\) + \(\frac{1}{β}\)

waec 2021

  • A. \(\frac{7}{6}\)
  • B. \(\frac{7}{3}\)
  • C. \(\frac{14}{5}\)
  • D. \(\frac{14}{3}\)
View Answer and Explanation