document.write( "Question 987500: Find an equivalent equation in rectangular coordinates for the equation r=4sin(θ)\r
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Algebra.Com's Answer #608355 by Edwin McCravy(20064)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "\"r+=+4sin%28theta%29\"\r\n" );
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document.write( "Always substitute for the trig functions first using \r\n" );
document.write( "\"sin%28theta%29=+y%2Fr\", \"cos%28theta%29=x%2Fr\", \"tan%28theta%29=y%2Fx\".\r\n" );
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document.write( "\"r+=+4%28y%2Fr%29\"\r\n" );
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document.write( "Clear of fractions by multiplying through by r\r\n" );
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document.write( "\"r%5E2+=+4y\"\r\n" );
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document.write( "Finally replace r by \"sqrt%28x%5E2%2By%5E2%29\" or in this case \"r%5E2\" by \"x%5E2%2By%5E2\" but always \r\n" );
document.write( "wait till the last step to substitute for r.\r\n" );
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document.write( "\"x%5E2%2By%5E2=4y\"\r\n" );
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document.write( "Edwin
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