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The square roots of 21 are 4.5826 (rounded)

and the negative of the same number.

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โˆ™ 2012-09-27 19:58:32
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Q: What are the square root of 21?
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Related Questions

What is the square root of -21?

The square root of -21 is: 4.582576 i


What is the square root of 21?

The square root of 21 is 4.58257569495584.


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


Is 4.5 the square root of 21?

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


Multiply negative root 8 4 and 6 plus root 6 4?

Root 64 is 8, if by root you mean the square root. Then the problem become -square root 84(6+8) which is the - square root of 84(14) But square root of 84 is 2(square root of 21) so the final answer comes from -2(square root 21)x14 which is -28square root (21)


What is the square root of 21 Times Square root 15?

Your answer is: 17.7482393


How do you find square root of square 21?

The square root and square functions are inverse of one another EXCEPT that square root is not really a function: it is a 1-to-many mapping. So sqrt(square(21)) = sqrt(441) = ±21


What is the principle square root of 49 over 21 squared?

(√(a))²=a The square root and the square cancel to leave just 49/21■


Is negative square root of 21 irrational?

Yes, as is the positive square root.


How do you simplify the square root of 2205?

21 times the square root of 5.


What is the simplest radical from of the square root of 84?

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


What is the square rout of 21?

There is no exact value for the square root of 21. √21 = 4.5825757 (7dp)


The square root of 441?

21


How do you get the square root of 21?

4.58257569495584...


What is square root of 441?

It is 21


What is the square root of 17640?

21


What Adds up to 6 but times into negative 12?

The numbers are: 3 +square root 21 and 3 -square root 21


What is equal to the square root of 49 times the square root of 9?

Square root of 49 = 7... Square root of 9 = 3... 3 x 7 = 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!!!


What is the actual answer of square root of 441?

441 has two square roots; 21 or -21.


What is the simplest radical form of the square root of 525?

5 times the square root of 21


Square root of 441?

plus or minus 21


What is the square root of 21 simplified?

21 its already simplified


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