anonymous one year ago Determine two pairs of polar coordinates for the point (5, -5) with 0° ≤ θ < 360°

1. Astrophysics

Use this for polar coordinates $x = r \cos \theta$$y= r \sin \theta$$r^2 = x^2+y^2 \implies r = \sqrt{x^2+y^2}$

2. anonymous

Thank You!

3. Astrophysics

Yw :)

4. Astrophysics

|dw:1439603222037:dw| so you can set it up as such :-)

5. Astrophysics

That's just a visual so you can see the angle and notice we are using pythagorean theorem.