Friday

January 30, 2015

January 30, 2015

Posted by **Jessica** on Wednesday, March 26, 2008 at 1:18am.

b. (2 rt2, 3pi/4)

I cant figure this one out

- Calc -
**drwls**, Wednesday, March 26, 2008 at 5:37amI don't know what they call the radius 2 rt2.

Whatever the polar-coordinate radius is, multiply it by cos 3pi/4 to get x and sin 3pi/4 to get y.

cos 3pi/4 = cos 135 degrees = -1/(sqrt 2)

sin 3pi/4 = sin 135 degrees = 1/(sqrt 2)

**Answer this Question**

**Related Questions**

Math (Calculus) - Given any Cartesian coordinates, (x,y), there are polar ...

trig - Given the polar coordinates of a point, how do I find the rectangular ...

Maths - Polar Coordinate Systems - I've recieved an assignment to investigate ...

Math - Convert each of the following points from rectangular coordinates to ...

Math - plot the point given in polar coordinates and find the corresponding ...

Math - A point in polar coordinates is given, Find the corresponding rectangular...

Physics - Two points in the xy plane have Cartesian coordinates (2.00, -4.00) m ...

TRIGONOMETRY - 3. The rectangular coordinates of a point are given. Find the ...

physics - Two points in a plane have polar coordinates (2.40 m, 40.0°) and (3.50...

science - The most convenient way to express vectors in the two dimensional ...