document.write( "Question 939608: I need to get all the possible solutions for this equation:
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document.write( "cos(x) = sin(x) + 1 \n" );
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Algebra.Com's Answer #572698 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! get all the possible solutions for this equation: \n" ); document.write( " cos(x) = sin(x) + 1 \n" ); document.write( "------ \n" ); document.write( "Square both sides:: \n" ); document.write( "cos^2 = sin^2 + 2sin + 1 \n" ); document.write( "----- \n" ); document.write( "1-sin^2 = sin^2 + 2sin + 1 \n" ); document.write( "2sin^2 + 2sin = 0 \n" ); document.write( "sin^2 + sin = 0 \n" ); document.write( "sin(sin+1) = 0 \n" ); document.write( "sin = 0 or sin = -1 \n" ); document.write( "--- \n" ); document.write( "x = 0 or x = 270 \n" ); document.write( "---- \n" ); document.write( "Check in original equation:: \n" ); document.write( "x = 0 ? :: 1 = 0 + 1 :::: true \n" ); document.write( "x = 270 ;; 0 = -1 + 1 :::: true \n" ); document.write( "----------- \n" ); document.write( "Conclusion:: x = 0 or x = 270 \n" ); document.write( "------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "-------------- \n" ); document.write( " \n" ); document.write( " |