Question

find the greatest number of the 4 digits which is a perfect square.​

Answer 1

Step-by-step explanation:

Greatest no. of 4 digits - 9999

if we do the square root of 9999 , remainder 198 will come..so we know if remainder will come it's not a perfect square...

So we need to find a number less than 9999

... Therefore we should subtract 198 from 9999..

9999- 198= 9801

so square root of 9801 is 99

so 9801 is the required number..