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

Algebra.Com's Answer #55877 by scott8148(6628) $\"\"$ $\"About$

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 $\"y%5E2=2x-x%5E2\"$ \n" ); document.write( "

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