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The binary operation * is defined over a set of real number by m*n= 2(m+n)+ mn If 5*y= ...

The binary operation * is defined over a set of real number by m*n= 2(m+n)+ mn If 5*y= 2*y find y
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  • A 2
  • B -2
  • C 5
  • D -5
Correct Answer: Option B
Explanation:

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