# How do you write the trigonometric form into a complex number in standard form #3(cos 165.5+isin165.5)#?

##### 2 Answers

Apr 9, 2018

#### Explanation:

#"evaluate cos and sin and multiply result by 3"#

#=3(-0.968+i0.25)#

#=-2.9+0.75ilarrcolor(blue)"in standard form"#

Apr 9, 2018

**Standard form:**

#### Explanation:

Trigonometric form:

Standard form:

Standard form: