Examine whether the operation * defined on {\R} by {\a} * {\b}= {\ab}+1 is (i) a binary or not. (ii) if a binary operation, is it associative or not?

CBSE Class 12 Math 2019 Delhi Set 1 Solved Paper - Question 5

Question : 5 of 29

Marks: +1, -0

Examine whether the operation

*

defined on

{\R}

{\a} * {\b}= {\ab}+1

is (i) a binary or not.
(ii) if a binary operation, is it associative or not?

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