Question

There is a number whose unit place digit is 1.Now we find it's square root. What will be the possible digit at the unit place of that square number? *

1 or 9

2 or 8

3 or 7

4 or 5​

Answer 1

Answer:

1 or 9

Step-by-step explanation:

becuase 9 and 1 their square 81 and 1 ends with 1 so if 1 comes at unit digit of something their square root will always end with 9 and 1 mark me as brainliest