document.write( "Question 1083666: Verify the identity.
\n" ); document.write( "cot(x-pi/2)= -tanx
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Algebra.Com's Answer #697688 by Alan3354(69443)\"\" \"About 
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Verify the identity.
\n" ); document.write( "cot(x-pi/2)= -tanx\r
\n" ); document.write( "\n" ); document.write( "-cot(pi/2 - x)= -tanx
\n" ); document.write( "-tan(x) = -tan(x)
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