document.write( "Question 91508: Find all solutions to the equation cos x = -1. \n" ); document.write( "
Algebra.Com's Answer #66475 by stanbon(75887)![]() ![]() ![]() 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( " |