Question

How do you multiply `sqrt(-16) + sqrt(-9)`?

Answer 1

`color(red)(7i`

Explanation:

`i` (imaginary unit) `=-1`
`sqrt(-16) = sqrt(-1.16) = 4i`
`sqrt(-9) = sqrt(-1.9) = 3i`

So ,`4i + 3i = color(red)(7i`