Question

Express the following in terms of i square root -18

Answer 1

Answer:
`√(2) *3i`

Explanation:

1. separate using the radical rule

sqrt{-a}=sqrt{-1}\sqrt{a}

`√(-18) = √(-1) *√(18)`

2. imaginary numbers

`√(-1) = i`

3. solve the rest regularly

`√(18) = √(2) *3`

4. combine

`√(2) *3*i =√(2)*3i`