document.write( "Question 928703: establish identity: tan x cot x-cos 2x = sin 2x \n" ); document.write( "
Algebra.Com's Answer #563784 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! duplicate. \n" ); document.write( "Not an identity. \n" ); document.write( " |