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21 is not a perfect square, and none of its factors (1, 3, 7, 21) are perfect squares either, so √21 is already simplified. The easiest way to compute an approximate value is using a calculator; if you are familiar with calculus, Newton's method works to find an approximation manually. Either way, it is approximately equal to 4.58258.
What else can I help you with?
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
Can you show me the working for the square root of 441?
To find the square root of 441, we can factor it. First, we find that 441 is equal to 21 × 21, since 21 multiplied by itself gives 441. Therefore, the square root of 441 is 21. We can also confirm this by checking (21^2 = 441).
Is the square root of 21 irrational?
Yes, the square root of 21 is irrational. This is because 21 is not a perfect square, and the square root of any non-perfect square is irrational. Additionally, the square root of 21 cannot be expressed as a fraction of two integers.
Is 4.5 the square root of 21?
4.6 is a better approximation to the square root of 21.
What is the exact value for the expression the square root of 189 minus the square root of 21 plus the square root of 84 Simplify if possible.?
21
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 square root of 21?
The square root of 21 is 4.58257569495584.
Can you show me the working for the square root of 441?
To find the square root of 441, we can factor it. First, we find that 441 is equal to 21 × 21, since 21 multiplied by itself gives 441. Therefore, the square root of 441 is 21. We can also confirm this by checking (21^2 = 441).
Square root of 21?
The square root of 21 is 4.58257569495584.
Is the square root of 21 irrational?
Yes, the square root of 21 is irrational. This is because 21 is not a perfect square, and the square root of any non-perfect square is irrational. Additionally, the square root of 21 cannot be expressed as a fraction of two integers.
Is 4.5 the square root of 21?
4.6 is a better approximation to the square root of 21.
What is the exact value for the expression the square root of 189 minus the square root of 21 plus the square root of 84 Simplify if possible.?
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 441?
21The square root of 441 is 21
What is the square root of 21 Times Square root 15?
Your answer is: 17.7482393
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.
