the square root of 64 is 8
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The square root of -64 is 8i. ' i ' is the unit imaginary number, equal to the square root of -1, or 1 at an angle of pi/2.
The square root of 64 is ± 8
The square root of 64 equals 8. 8x8=64
The square root of 64 is 8 which is a rational number
That is because 1x1=1 and to be a square root, a number times the same number, it will be a square root of that number*. *Example 8 times the same number (8) will be 64 and 8 will be the square root of 64.