Question

Which choice is equivalent to expresision below?


`√( - 100)`
A.

`- √(10)`
B.

`i √(10)`
c.

`- 10`
D.

`√(10i)`
E.

`10i`

Answer 1

We can simplfiy to be
`-√(100)`

`√(-1) * √(100)`.

We know that
`√(100)` is 10 and
`-1` is i, so the answer is 10i, or D.