Question

9. Give reason to show that none of the numbers given below is a
perfect square.
a) (i)9637 (ii) 6598
b) (i)4000 (ii)9,00,000
​

Answer 1

no one in the following is perfect square

9637- unit digit - 7 - 7 is not perfect square

6598-unit digit -8 - 8 is not perfect square

4000 - unit digit - 0 - 0 is not perfect square

900000- unit digit - 0 - 0 is not perfect square