document.write( "Question 753681: Verify the basic identity. What is the domain of validity?\r
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Algebra.Com's Answer #458528 by tommyt3rd(5050)\"\" \"About 
You can put this solution on YOUR website!
\"%0D%0Acot%28theta%29=cos%28theta%29%2Fsin%28theta%29=cos%28theta%29csc%28theta%29%0D%0A\"\r
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\n" ); document.write( "\n" ); document.write( "and it has the domain \r
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\n" ); document.write( "\n" ); document.write( "\"%0D%0A0%3C=theta%3C%2Bpi%0D%0A\"\r
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