## anonymous 4 years ago what is the square root of -5

1. anonymous

and how did you find it

2. anonymous

This is an imaginary answer ...

3. LollyLau

sqrt (5) i?

4. anonymous

since it is negative, take the negative sign out, since we do not know the square root of 5, we have $\sqrt{5}-$

5. LollyLau

i = sqrt(-1) these are called imaginary numbers... written in the form of a+bi

6. anonymous

oppp$-\sqrt{5}$

7. LollyLau

if drawn on a grid, the x-axis is the number line and the y-axis is the imaginary number line.

8. anonymous

it is 2.23i. i is the mathematical term for the square root of -1

9. EarthCitizen

$i \sqrt{5} =i2.2$