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Q: What is the Square root of 21 in radical form?

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5 times the square root of 21

if you mean what is square root of 200 in its simplest radical form its 10*21/2

First note that 84=4x21 and 4 is a perfect square. So square root of (84)=square root (4x21)=Square root (4) Square root (21)= 2 multiplied by the square root of 21. You can also write this using rational exponents, but this is not in radical form. It is an equivalent expression, however. 2 x (21)1/2

sqrt(21) cannot be simplified.

The square root of 21 is 4.58257569495584.

The square root of 21 is 4.58257569495584.

The square root of -21 is: 4.582576 i

sqrt(441) = 21.

Square root of 9 is 3 and 3/21 = 1/7 in its simplest form

4.6 is a better approximation to the square root of 21.

21The square root of 441 is 21

Your answer is: 17.7482393

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