Homework Help: Pre-calc

Posted by Anne on Monday, September 17, 2012 at 4:03pm.

1. Find the polar coordinates of (8, –8) for r > 0.

2.Find the rectangular coordinates of (9, 150°)

Pre-calc - Steve, Monday, September 17, 2012 at 4:12pm
(r,θ) = (8√2,315°) or ((8√2,-45°)
(x,y) = (9cos150°,9sin150°) = (-9/2, 9/2 √3)
Pre-calc - Steve, Monday, September 17, 2012 at 4:13pm
dang - gotta stop typing too fast:
(x,y) = (9cos150°,9sin150°) = (-9/2 √3, 9/2)

Related Questions

trig - Given the polar coordinates of a point, how do I find the rectangular ...
pre calc.Math - Please help me any one of these please! Thank You to any one r=...
Trigonometry - 1)Find the polar coordinates of the point whose rectangular ...
calc - Find the corresponding rectangular coordinates for the polar point (4...
Calc 2 - Find the corresponding rectangular coordinates for the polar point (4...
Calc - Find the cartesian coordinates of the following points given in polar ...
Pre calculus - 1. convert polar equation to rectangular coordinates: r^2=...
Math - The rectangular coordinates of a point are given. Find two sets of polar ...
Math - plot the point given in polar coordinates and find the corresponding ...
Pre-Calc - Can anyone direct me to learn more about polar coordinates. I'm ...

For Further Reading

First Name:
School Subject:
Answer: