Question

What is the conjugate of 3+6i?

A -3 - 6i

B 3 - 6i

C 3 + 6i

D 9i

Answer 1

B

Explanation:

A conjugate is a term that has the same real part of its original but opposite terms of the second sign

Look at

`3 + 6i`

The real part is 3 so B and C are the only possible answer.

The conjugate has the opposite sign of the second sign so the answer is

B

`3 - 6i`