document.write( "Question 91508: Find all solutions to the equation cos x = -1. \n" ); document.write( "
Algebra.Com's Answer #66475 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
The pricipal solution is x = 180 degrees.
\n" ); document.write( "You cannot list all the solutions unless you like the following:
\n" ); document.write( "x = 180 + 360n where n= 1,2,3,..... or n=-1,-2,-3,....
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );