# How do you add (-2+8i)+(5+3i) in trigonometric form?

Oct 21, 2017

$3 + 11 i$

#### Explanation:

We can just simply expend the expression and group the like terms together as the following:

$\left(- 2 + 8 i\right) + \left(5 + 3 i\right)$
$= - 2 + 8 i + 5 + 3 i$
$= \left(- 2 + 5\right) + \left(8 i + 3 i\right)$
$= 3 + 11 i$