Question

Finding polar coordinates of the point ?(-2.3,-4.1)

Answer 1

We have the next coordiantes (-2.3,-4.1)

First we need to calculate the resultant

`r=√((-2.3)^2+(-4.1)^2)`
`r=4.7`

Then we calculate the angle

`\theta=tan((-4.1)/(-2.3))^(-1)=-119.3`

Therefore the polar coordinate is

`4.7\angle-119.3`