Question

Select the correct answer.

What is the standard form of this complex number?
3i + ( + 2i ) – (3 + 3i)

Answer 1

`\huge\boxed{A.\ -(9)/(4)+2i}`

Explanation:

The standard form of a complex number:

`z=a+bi\\\\a,\ b\in\mathbb{R}`

`3i+\left((3)/(4)+2i\right)-(3+3i)=3i+(3)/(4)+2i-3-3i\\\\=\left((3)/(4)-3\right)+(3+2-3)i=-2(1)/(4)+2i=-(9)/(4)+2i`