Posted by Abbey(Please help) on Friday, April 30, 2010 at 3:57pm.
plot the point given in polar coordinates and find the corresponding rectangular coordinates for the point.
(1 , 3pi/4)
I do not understand.

Math  Reiny, Friday, April 30, 2010 at 5:49pm
Are you more comfortable thinking in degrees?
3π/4 radians = 135° ( clockwise)
135 is coterminal with +225°
so we could write our point as
(1,225°)
which is the same as (+1 , +45°)
so x = cos45/1 = √2/2
y = sin45/1 = √2/2
the point is (√2/2,√2/2) 
Math  Abbey(Please help), Friday, April 30, 2010 at 6:10pm
Thank You!