document.write( "Question 331531: Verify that cot^2 x + sin^2 x=csc^2 x is an identity \n" ); document.write( "

Algebra.Com's Answer #237609 by Edwin McCravy(20059) $\"\"$ $\"About$

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document.write( "That is not an identity.  For example suppose x=45°, then\r\n" );
document.write( " and so \r\n" );
document.write( " and so \r\n" );
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document.write( "Substituting those in the original equation:\r\n" );
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document.write( "which is false.\r\n" );
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document.write( "Sorry.\r\n" );
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document.write( "Edwin

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