document.write( "Question 982402: 1/sec+1/tan=sec-tan theta prove it. \n" ); document.write( "
Algebra.Com's Answer #603219 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
1/sec+1/tan=sec-tan
\n" ); document.write( "cos + cot = sec - tan
\n" ); document.write( "Multiply by cos
\n" ); document.write( "cos^2 + cos^2/sin = 1 - sin
\n" ); document.write( "(cos^2 + 1)/sin = 1 - sin
\n" ); document.write( "cos^2 + 1 = sin - sin^2
\n" ); document.write( "Not an identity.
\n" ); document.write( "
\n" );