Question

Can you explain to me why the third part would be pi/2 as the unit circle value?

Answer 1

Given

point (0,3)

Find

polar coordinates

Step-by-step explanation

polar coordinates are

`(r,\theta)`

where

`\begin{gathered} r=√(x^2+y^2) \\ r=√(0^2+3^2) \\ r=3 \end{gathered}`

and

`\begin{gathered} \theta=\tan((y)/(x)) \\ \theta=\tan((3)/(0)) \\ \theta=(\pi)/(2) \end{gathered}`

Final answer

So, the polar coordinates =