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Earn +20 ptsQ: The square root of 21 is it rational or irrational?
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Square root of 21?
The square root of 21 is 4.58257569495584.
What is the square root of 441?
21The square root of 441 is 21
What is the actual answer of square root of 441?
441 has two square roots; 21 or -21.
Why is square root of 22 square plus root 23 equal to square root of 21 plus square root of 24?
It isn't. √22 + √23 = 9.486. √21 + √24 =9.482. its not that its more than that!!! its..... NOTHING!!! you got that??? NOTHING at all!!!
Simplify the square root of 84?
Expressed as a surd, the square root of 84 is equal to 2 sqrt (21). √84 = √(4 x 21) = √4√21 = 2√21
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