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Question 0

The binary operation on the set of real numbers is defined by m*n = \(\frac{mn}{2}\) for all m, n \(\in\) R. If the identity element is 2, find the inverse of -5

  • A.\(-\frac{4}{5}\)
  • B.\(-\frac{2}{5}\)
  • C.4
  • D.5
  • E.
Objective

Question details

Exam body
JAMB
Subject
Mathematics
Year
2012
Question no.
#0
Type
Objective
Previous · Q0The binary operation * is defined on the set of integers such that p * q = pq +… Next · Q0 If \(\begin{vmatrix} 5 & 3 \\ x & 2 \end{vmatrix}\) = \(\begin{vmatrix} 3 & 5 \\…

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