Question

What is the polar form of `( -1,3 )`?

Answer 1

Polar form is `(r,theta)`

Explanation:

`r=sqrt((-1)^2+(3)^2)=sqrt10`

The point is in quadrant II ...

reference angle `=tan^-1(3/1)=71.565^o`

`theta=180-71.565=108.435^o`

polar form `=(sqrt(10),108.435^o)`

hope that helped