document.write( "Question 1199469: Prove the identity:\r
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Algebra.Com's Answer #833402 by MathTherapy(10557)\"\" \"About 
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document.write( "Prove the identity:\r\n" );
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document.write( "1/(coseca-cota)-1/sina=1/sina-1/(coseca+cota)\r\n" );
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document.write( "   \r\n" );
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document.write( "                                                                        OR\r\n" );
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document.write( "                           \"highlight_green%281%2F%28csc+%28a%29+-+cot+%28a%29%29+-+1%2Fsin+%28a%29%29\"                                                \"highlight%281%2Fsin+%28a%29+-+1%2F%28csc+%28a%29+%2B+cot+%28a%29%29%29\"\r\n" );
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