document.write( "Question 1063189: Which identity would be the next best step for solving the following expression?\r
\n" ); document.write( "\n" ); document.write( "Expression & identities: https://s24.postimg.org/gxkb2gjlh/best_next_step_6.png
\n" ); document.write( "Thanks.
\n" ); document.write( "

Algebra.Com's Answer #678232 by Boreal(15235)\"\" \"About 
You can put this solution on YOUR website!
D. If one considers that sec^2 x=tan^2 x+1
\n" ); document.write( "then sec^2 x-1=tan^2 x. Substitute tan^2 x for sec^2 x-1
\n" ); document.write( "Once you have that in place, you can multiply through to the answer on the right.
\n" ); document.write( "
\n" ); document.write( "
\n" );