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The answer is 2i. When dealing with negative square roots, the expression i is used to represent the square root of -1.

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Q: What is the square root of four?
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Related questions

What is an example of a rational number between the negative square root of four and the square root of four?

-1,0,or 1 the negative square root of four is negative two and the square root of four is two


What is the square root of four twentyfifths?

The square root of four twenty-fifths, is two fifths, because of the fact that the square root of four is two and the square root of twenty-five is five.


What is the square root of three quarters?

The answer is 2 on the square root of 3, all divided by 4. You come to this conclusion by multiplying the square root of three quarters by the square root of four divided by the square root of four, since there can't be a square root in the denominator. This will cancel out the "4" in the square root of three quarters, causing it to be now the square root of 12 over a normal four (the square root of four times the square root of four equals four). Then you simplify the square root of twelve by taking it's radical form, knowing that it takes 4 and 3 to multiply to get 12, and 4 is a perfect square, you take its perfect square which is 2, and put it outside of the square root of 3, all over 4. Hope this helped


What is the square root a four by four square?

4


The square root of sixty-four is...?

The square root of 64 is 8.


What is the square root of one-fourth of four?

One fourth of four = 1. Square root of 1 = 1.


Can a square root be rational?

yes, one such is the square root of four, which is two


Square root 43.25?

The square root of 43.25 is (to four decimal places) 6.5767


What is the square root of minus four?

The square root of -4 is: 2 i


Is 2 a square root?

Two is the square root of four. Yes. As 2 squared is 4, the square root of 4 is 2, if that is what your are asking.


What is the value of the square root of twenty minus the square root of five plus the square root of forty-five four times the square root of five te?

pi it's so easy


Why cant you get the square root of the sum of numbers?

You can. Just add the numbers together, and find their square root. One plus three is four; the square root of the sum is two.


What is the square root of the square root of pi?

1.3313353638003897127975349179503 * * * * * That is only only one of the four roots. The other three are: - 1.331335 1.331335*i and - 1.331335*i where i is the imaginary square root of -1.


What is the square root of 226?

ROunded to four significant places of decimals, the square root of 226 is 15.0333


How do you work out -3 in the four fours?

(4/4)-(the square root of 4)-(the square root of 4)


What is the square root of negative four?

The answer is 2i. When dealing with negative square roots, the expression i is used to represent the square root of -1.


What is a good sentence with the word root?

The square root of four is two.


What is the square root of 16 then cubed?

The square root of 16 is four. Four cubed is 4 x 4 x 4 = 64


What is 4 times the square root of 1 plus 9?

Square root of one is one, so four times this is four, add 9 is 13


Evaluate square root of 12 to four decimal places?

square root(12) = 3.4641


What is the square root of 12345678910?

Rounded to four decimal places, the square root of 12345678910 is approximately equal to 111111.1107.


What is the square root of sixty four?

The square root of 64 is 8 because 8 times 8 = 64


What is four square root of five plus four square root of five in radical form?

45+45+90


Is the square root of four irrational?

No, they are not irrational.


What is 2 square root of fifty?

The square root of 50 is 7.0711 (correct to four places of decimals), and twice it is 14.1421