Number of non-square numbers between 11^2 and 12^2 is - Vidyadip

Question

Number of non$-$square numbers between $11^2$ and $12^2$ is

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Answer

Number of non$-$square numbers between $11^2$ and $12^2$ is $\left(12^2-11^2\right)-1=12+11-1=22$.

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