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Multiply D no. by own Ex.2*2=4, 9*9=81
ND when V find square root of 4 answer s 2, sir root f 25 answer s 5 bcz 5*5=25...
Learn D sqrs f every no.
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Square root is the double of the number for eg: 2X2=4 that means square root of 4 is 2.
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