Let * be a binary operation on the set R of real numbers defined by a*b=\frac{3 a b}{7}, then the identity element in R for is*' is

Correct Answer is : None of these

AMU Engineering 2018 solved paper Solved Paper

Section: Mathematics

Question : 103 of 150

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Let * be a binary operation on the set R of real numbers defined by a*b=

3ab

, then the identity element in R for ′*′ is

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