document.write( "Question 1206160: Solve for (0<=x<=360)
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document.write( "sin2x-cosx=-1+2sinx
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document.write( "ans:0,30,150,360 \n" );
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Algebra.Com's Answer #843413 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Solve for (0<=x<=360) \n" ); document.write( "sin2x-cosx=-1+2sinx \n" ); document.write( "------------- \n" ); document.write( "sin(2x)-cos(x)=-1+2sin(x) \n" ); document.write( "2sin(x)cos(x) - cos(x) = -1 + 2sin(x) \n" ); document.write( "cos*(2sin - 1) = -1 + 2sin = -(2sin - 1) \n" ); document.write( "cos(x) = -1 \n" ); document.write( "x = 180 degs \n" ); document.write( " |