The square root of any negative number will always be a complex number.
The word 'complex' can be supplemented for the word 'imaginary' which is what they can sometimes be called.
'i' stands for imaginary and equals the square root of minus one.
sq(-1) = i - (that is the basic fact)
The imaginary numbers work in a quadratic fashion (x^2) so:
sq(-1) = i
sq(-4) = 2i
sq(-9) = 3i
(so it takes the positive form of the number and square roots it, then multiplies it by i)
Example:
sq(-2) = sq(2)x (i) = (1.4142 x i) = 1.4142i
The square root of -4 is: 2 i
?
It is: (3*2)-(2*2) = 2
4 x square root of 10 minus square root of 10 = 3 x square root of 10.
Multiply everything by the square root of 3 minus the square root of 2 and then times that by 100 - 72 and divide that by 5
2 square root 2
The square root of -4 is: 2 i
24
The square root of minus 8 is equal to the square root of 8 times the square root of minus 1, or 2.8284i.
x plus the square root of 2
Yes and x = 2+square root of 6 or x = 2-square root of 6
[ 2 minus square root of 5 ] is the only one.
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It is: (3*2)-(2*2) = 2
-184
4 x square root of 10 minus square root of 10 = 3 x square root of 10.
sqrt(18) - sqrt(8) = sqrt(2)