document.write( "Question 433434: How to establish this identity? Cos(theta)(tan(theta) + cot(theta)) = csc(theta)\r
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document.write( "Which side do I work on the left? And how do I simplify it? \n" );
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Algebra.Com's Answer #300447 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! How to establish this identity? Cos(theta)(tan(theta) + cot(theta)) = csc(theta) \n" ); document.write( "------------- \n" ); document.write( "You can work on either or both sides. \n" ); document.write( "Cos(theta)(tan(theta) + cot(theta)) = csc(theta) \n" ); document.write( "Change it all to sines & cosines \n" ); document.write( "Cos*(sin/cos + cos/sin) = 1/sin \n" ); document.write( "sin + cos^2/sin = 1/sin \n" ); document.write( "Multiply by sine \n" ); document.write( "sin^2 + cos^2 = 1 \n" ); document.write( " \n" ); document.write( " |