Question

(-11+ √-4) + (4+ √-36)

Answer 1

`-7 + 8i`

Explanation:

`(-11 + √(-4)) + (4 + √(-36)) = (-11 + 2√(-1)) + (4 + 6√(-1))`

We know
`√(-1)` is a complex number and is defined by
`i`

∴
`(-11 + √(-4)) + (4 + √(-36)) = (-11 + 2i) + (4 + 6i) = -7 + 8i`