document.write( "Question 415771: How would you prove: tanAsinA+cosA=secA?? \n" ); document.write( "
\n" ); document.write( "Hi\n" ); document.write( "tanAsinA+cosA=secA\n" ); document.write( " |multiplying thru with cosA\n" ); document.write( "\n" ); document.write( "\n" ); document.write( "