Question

Rewrite √-9-6 in complex number notation.

A. −6 − 3i
B. −6 + 3i
C. √3i -6
D. -6 -√-9

Answer 1

B) - 6 + 3i

Explanation:

Complex number notation:

i² = -1

`\sf √(-9)-6=√(3^2*i^2)-6`

`\sf = 3i - 6`