Question

what is additive and multiplicative identity??

Answer 1

"Identity just means same, i.e any operation you do with a respective number,yields the same number."
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# Additive identity: A property of mathematical set, when a number is added any other number yields the same number is called additive identity.

Zero is the additive identity of all real numbers.

Examples:
5+0=5
10+0=10
5/2+0=5/2 
0.548+0=0.548

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# Multiplicative identity: A property of mathematical set, when a number is multiplied any other number yields the same number is called multiplicative identity.

1 is the multiplicative inverse of all real number.

Examples:
5×1=5
1/5×1=1/5
0.666×1=0.666

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