document.write( "Question 926279: how to verify the identity tan ^2 x + sec ^ 2 x = 2 Sec ^2 x -1\r
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Algebra.Com's Answer #562124 by Alan3354(69443)\"\" \"About 
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how to verify the identity tan ^2 x + sec ^ 2 x = 2 Sec ^2 x -1
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\n" ); document.write( "Subtract sec^2
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\n" ); document.write( "Don't put a space before the ^
\n" ); document.write( "tan^2 = sec^2 - 1
\n" ); document.write( "I'm convinced.
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