document.write( "Question 242119: 1. Simplify
\n" ); document.write( "a) 1/sin^2x - 1/tan^2x
\n" ); document.write( "b)sinxcosx/1-sin^2x\r
\n" ); document.write( "\n" ); document.write( "2. Prove that tanx + 1/tanx = 1/sinxcosx\r
\n" ); document.write( "\n" ); document.write( "3. Prove that sec^2x - 2secxcosx + cos^2 = tan^2x - sin^2x\r
\n" ); document.write( "\n" ); document.write( "4. Prove that 1 + cotxtany = sin(x+y)/sinxcosy \r
\n" ); document.write( "\n" ); document.write( "5. Prove that 1-sin2x/cos2x = cos2x/1+sin2x
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Algebra.Com's Answer #177817 by nyc_function(2741)\"\" \"About 
You can put this solution on YOUR website!
Come one, now! No one is going to answer all these questions. Why not post one question at a time for a faster reply?\r
\n" ); document.write( "\n" ); document.write( "Which one do you want me to help you with?\r
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