Question

The largest four digit number which perfect square of a whole number

Answer 1

the ans of this question is 99 is 9801

Answer 2

The largest 4 digit prefect square shall be the square of the largest 2 digit number

Therefore largest 2 digit =99
square number of 99 =99*99
=9801

Hence the answer is 9801

I HOPE THAT MY ANSWER HELP YOU