Question

What is the Cartesian form of `( 3, (-7pi)/2 )`?

Answer 1

The Cartesian form `(x,y)=(0,3)`

Explanation:

show below:

`(r,theta)=( 3, (-7pi)/2 )`

`x=r*costheta=3*cos[(-7pi)/2]=3*cos[(7pi)/2]=0`

`y=r*sintheta=3*sin[(-7pi)/2]=3*1=3`

The Cartesian form `(x,y)=(0,3)`