document.write( "Question 792585: Solve cos2x=tan2x \n" ); document.write( "
Algebra.Com's Answer #480065 by harpazo(655) You can put this solution on YOUR website! Hint:\r \n" ); document.write( "\n" ); document.write( "cos(2x) = cos^2(x) - sin^2(x) \r \n" ); document.write( "\n" ); document.write( "tan(2x) = 2 tan(x) / (1 - tan^2(x))\r \n" ); document.write( "\n" ); document.write( "tanx = sinx/cosx\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |