sqrt(1) + sqrt(1) + sqrt(64) =
+/- 1 +/- 1 +/- 8
positive square root is 10
negative square root is -10
By permutating the +/- it could also be +8, -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.
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.
Yes, if x and y = 1 √1 + √1 = √1 + 1 1 + 1 = 1 + 1 QED
Square root of 3 is approximately 1.732. 1.732 + 1 =2.732
8i and -8i both satisfy this: (8i)² = (8²)(i²) = (64)(-1) = -64, and (-8i)² = (-8²)(i²) = (64)(-1) = -64