document.write( "Question 433434: How to establish this identity? Cos(theta)(tan(theta) + cot(theta)) = csc(theta)\r
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Algebra.Com's Answer #300447 by Alan3354(69443)\"\" \"About 
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How to establish this identity? Cos(theta)(tan(theta) + cot(theta)) = csc(theta)
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\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
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