Question

The identity element of addition is:​

Answer 1

where is the element??

I think this question is incomplete!!

Answer 2

For example 0 is the identity element under addition for the real numbers, since if a is Any real number , a+0=0+a=a Similarly. 1 is the identity element under multiplication for the real number , since a*1=1*a = a... also called unity....

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