Question

Find the difference of the complex numbers.(3 + 7i ) - (-4 - 2i )A.-1 + 9iB.-1 + 5iC.7 + 5iD.7 + 9i

Answer 1

Given: A complex expression is given

`(3+7i)-(-4-2i)`

Required: To simplify the given expression.

Explanation: The given expression can be simplified as follows-

`\begin{gathered} 3+7i+4+2i \\ \end{gathered}`

which gives

`7+9i`

Final Answer: Option D is correct.