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Question 12

The roots of the equation \(2x^{2} + kx + 5 = 0\) are \(\alpha\) and \(\beta\), where k is a constant. If \(\alpha^{2} + \beta^{2} = -1\), find the values of k.

  • A.\(\pm 16\)
  • B.\(\pm 8\)
  • C.\(\pm 4\)
  • D.\(\pm 2\)
Objective

Question details

Exam body
WAEC
Subject
Further Mathematics
Year
2006
Question no.
#12
Type
Objective
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