Question

find the complex conjugate of the given number.
7 + 4i
write your answer in the form a + bi.

Explanation:

Step1: Recall complex conjugate rule

The complex conjugate of $a+bi$ is $a-bi$.

Step2: Apply rule to $7+4i$

Substitute $a=7$, $b=4$: $\boldsymbol{7 - 4i}$

Answer:

$7 - 4i$