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
Explanation
Correct Option
aVideo Explanation
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