Question

what will be the unit digit of square of a number 39 +5​

Answer 1

Answer:

Given a number 39 and need to find out the unit digit of the square of number. Now, the square of number, n = n2 Since, we have “9” as the unit place in the number “39”. ⇒ 92 = 81 ⇒ 1 will be the unit digit of square of 39.

Answer 2

Answer:

given a number 39 and need to find out the unit digit of the square of the number now the square of the number and since we have 9 and unit place in the number 39 92 is equal to 81 is equal to one will be the unit digit of squares 39