What is the conjugate of #1 + 3i#?

1 Answer
Dec 8, 2015

Answer:

#1-3i#

Explanation:

To find a complex conjugate, simply change the sign of the imaginary part (the part with the #i#). This means that it either goes from positive to negative or from negative to positive.

As a general rule, the complex conjugate of #a+bi# is #a-bi#.

Therefore, the complex conjugate of #1+3i# is #1-3i#.