Question

Unit digit in the square of 3457is

Answer 1

Answer:

When we are required to find out the digit at the unit place of a square, we see the last digit of the number

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For instance, here the last digit is 7

Now, we take square of 7 e.g. 7^2 = 49

Now, we see that the digit at the unit place of 7^2 is 9

Therefore, we say that the digit at the unit place of the number "3457" will also be 9

T oprove this, lets take square of "3457"

3457^2 = 11950849

Answer 2

Answer:

if you do the square of (3457)^2 you will get 11950849. so the unit digit is 9

Explanation:

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