The answer to (-1)^{1/2} can not be -1 as you say. To see this just multiply -1 with itself and you get 1, not -1. You can not put a negative real number under a square root and expect the result to be a real number. That is why we invented imaginary numbers.

Mohd T.

asked • 11/13/20# Why it shows me Error when calculating sqrt (-1) ?

When I calculate the value of (-1)^{1/2} the answer is -1

but when I do the same thing but with radical √-1 the answer is error ?!!

since the radical √ is to the exponent to 1/2 in case of square root not others with higher indexes why the answer is not the same ?!

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Mohd T.

okay 1-^2= -1 x -1 =1 what is 2^1/2 ? explain it please and please explain it in term of exponent not radicals.11/14/20