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Question

1 is the multiplicative identity for


A

whole numbers

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B

integers

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C

rational numbers

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D

all the above

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Solution

The correct option is D

all the above


Explanation for correct option:

Multiplicative identity - the whole number which, when multiplied to another whole number, results in the whole number to which it was multiplied.

For any number a, a×1=a,here 1is the multiplicative identity for a.where a

Since real number consist of all whole numbers, integers, and rational numbers

Hence,,1 is the multiplicative identity for whole numbers, integers, and rational numbers.

Hence, the correct option is (D).

Explanation for incorrect option:

Since, All the option consist of correct answer so, any one option cannot be chosen as correct option.

Hence, the correct option is (D).


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