document.write( "Question 335680: I am stuck in the following problem and will appreciate an explanation for it. Thanks for your help. :-)
\n" ); document.write( "**Find a rectangular equation equivalent to r=sin(2θ) \n" ); document.write( "

Algebra.Com's Answer #240663 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Substiute
\n" ); document.write( " $\"r%5E2=x%5E2%2By%5E2\"$
\n" ); document.write( " $\"x=rcos%28theta%29\"$
\n" ); document.write( " $\"y=rsin%28theta%29\"$
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\n" ); document.write( " $\"sin%282%2Atheta%29=2sin%28theta%29cos%28theta%29=2xy\"$
\n" ); document.write( " $\"r=sqrt%28x%5E2%2By%5E2%29\"$
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\n" ); document.write( " $\"sqrt%28x%5E2%2By%5E2%29=2xy\"$
\n" ); document.write( " $\"x%5E2%2By%5E2=4x%5E2y%5E2\"$
\n" ); document.write( " $\"x%5E2%2By%5E2-4x%5E2y%5E2=0\"$ \n" ); document.write( "

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