By repeated subtraction of odd numbers find whether 121 is a perfect s – InterviewSolution

1.	By repeated subtraction of odd numbers find whether 121 is a perfect square or not? If number is perfect square find its square root.
Answer» i.e. 121 = 1+3+5+7+9+11+13+15+17+19+21. THUS , 121 is a PERFACT SQUARE.

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