root 8 x root 26 = root (8 x 26) = 14.42 (also 2.83 x 5.10 = 14.433)
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The square root of minus 8 is equal to the square root of 8 times the square root of minus 1, or 2.8284i.
4 square root of 7
7 for 49 and 8 for 64
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.
It is: 2 times the square root of 2