document.write( "Question 691783: Please help me prove these following identities with explanation, thanks <3\r
\n" ); document.write( "\n" ); document.write( "1.) \"+csc%5E2%28theta%29+-+csc%5E2%28theta%29+cos%5E2%28theta%29+=+1+\"\r
\n" ); document.write( "\n" ); document.write( "2.) \"+sin%28theta%29+%2F+cos%28theta%29+%2B+cos%28theta%29+=+sec%28theta%29+\"\r
\n" ); document.write( "\n" ); document.write( "3.) \"+tan%5E2%28theta%29+%2F+%281+%2B+sec%28theta%29%29+%2B+1+=+sec%28theta%29+\"\r
\n" ); document.write( "\n" ); document.write( "4.) \"+2cos%5E2%28theta%29+-+1+=+1+-+2sin%5E2%28theta%29+\"\r
\n" ); document.write( "\n" ); document.write( "5.) \"+tan%5E2%28theta%29+=+%281%2Btan%5E2%28theta%29%29+%281-cos%5E2%28theta%29%29+\"
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Algebra.Com's Answer #426853 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Please help me prove these following identities with explanation, thanks <3\r
\n" ); document.write( "\n" ); document.write( "1.) \"+csc%5E2%28theta%29+-+csc%5E2%28theta%29+cos%5E2%28theta%29+=+1+\"\r
\n" ); document.write( "\n" ); document.write( "2.) \"+sin%28theta%29+%2F+cos%28theta%29+%2B+cos%28theta%29+=+sec%28theta%29+\"\r
\n" ); document.write( "\n" ); document.write( "3.) \"+tan%5E2%28theta%29+%2F+%281+%2B+sec%28theta%29%29+%2B+1+=+sec%28theta%29+\"\r
\n" ); document.write( "\n" ); document.write( "4.) \"+2cos%5E2%28theta%29+-+1+=+1+-+2sin%5E2%28theta%29+\"\r
\n" ); document.write( "\n" ); document.write( "5.) \"+tan%5E2%28theta%29+=+%281%2Btan%5E2%28theta%29%29+%281-cos%5E2%28theta%29%29+\"
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\n" ); document.write( "That's a lot of problems.
\n" ); document.write( "Convert everything to sines and cosines, see what you can do.
\n" ); document.write( "email via the Thank You note if you need further assistance.\r
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