document.write( "Question 982402: 1/sec+1/tan=sec-tan theta prove it. \n" ); document.write( "
Algebra.Com's Answer #603219 by Alan3354(69443)![]() ![]() 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( " |