Question

what do you mean by √​

Answer 1

√ this is the sign for square root !

Answer 2

Hey mate,

√ means root .

This is a square root

This means that the number inside this may be a perfect square

for example = √25 = √ 5×5 = 5

Thus 25 is a perfect square i.e. of 5

Similarly √10 is not a perfect square root

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