Question

what will be the unit digit of the square of ​

Answer 1

Step-by-step explanation:

A perfect square can always be expressed as the product of pairs of prime factors. A perfect cube can always be expressed as the product of triplets of prime factors. The unit digit of a perfect square can be only 0, 1, 4, 5, 6 or 9. The square of a number having: 1 or 9 at the units place ends in1.

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Answer 2

Answer

0, 1, 2, 4, 6,9

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