document.write( "Question 239079: verify the identity
\n" ); document.write( "sec^2(x)tan^2(x)+sec^2(x)=sec^4(x)
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Algebra.Com's Answer #175601 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
dividing by sec^2 ___ tan^2 + 1 = sec^2\r
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\n" ); document.write( "\n" ); document.write( "multiplying by cos^2 ___ sin^2 + cos^2 = 1
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