Question

39.a) What could be the possible 'one's' digits of the square root of each of the
following numbers?
(1) 9801 (in) 99856
the following decimal number​

Answer 1

Answer:

(i) 1 or 9

(ii) 4 or 6

Step-by-step explanation:

1 square = 1

9 square = 81

Therefore, one's digit of the square root of number ending with 1 will be 1 or 9.

4 square = 16

6 square = 36

Therefore, one's digit of the square root of number ending with 6 will be 4 or 6.