What are the components of the vector between the origin and the polar coordinate $(1, (3pi)/8)$ ?

Question

1344 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-08-02T14:21:03

If $(r,theta)$ be the polar coordinate of point then the position vector of the point is

$veca=rcosthetahati+rsinthetahatj$

$"For "r=1 and theta =(3pi)/8" "veca" becomes$

$veca=1*cos(3pi/8)i+1*sin(3pi/8)j$

$veca=(0.38)i+(0.92)j$

What are the components of the vector between the origin and the polar coordinate (1, (3pi)/8)(1, (3pi)/8)?