SOLUTION: I hope this is the correct category for this question. The chapter heading is Polar Coordinates:vectors. Convert to the appropriate equation. Given: Polar Coord. Form: r = 2

Algebra ->  Vectors -> SOLUTION: I hope this is the correct category for this question. The chapter heading is Polar Coordinates:vectors. Convert to the appropriate equation. Given: Polar Coord. Form: r = 2      Log On


   



Question 77893This question is from textbook
: I hope this is the correct category for this question. The chapter heading is Polar Coordinates:vectors.
Convert to the appropriate equation.
Given: Polar Coord. Form: r = 2 Cos [Theta]
Find the Rectangular Coord. Form of this equation
Help me please!
This question is from textbook

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
from the unit circle, cos[theta]=x/r and x%5E2%2By%5E2=r%5E2...so r=2(x/r)... r%5E2=2x...x%5E2%2By%5E2=2x...or y%5E2=2x-x%5E2