# How do you write the trigonometric form into a complex number in standard form 7(cos0+isin0)?

##### 1 Answer
Sep 5, 2016

$7 \text{ or } 7 + 0 i$

#### Explanation:

Begin by evaluating the $\textcolor{b l u e}{\text{trigonometric part}}$ inside the bracket.

$\textcolor{\mathmr{and} a n \ge}{\text{Reminder}}$

$\textcolor{red}{| \overline{\underline{\textcolor{w h i t e}{\frac{a}{a}} \textcolor{b l a c k}{\cos 0 = 1 \text{ and } \sin 0 = 0} \textcolor{w h i t e}{\frac{a}{a}} |}}}$

$\Rightarrow 7 \left(\cos 0 + i \sin 0\right) = 7 \left(1 + 0\right) = 7 = 7 + 0 i$