document.write( "Question 1202973:  Hi,
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document.write( "Can you help me with this one?
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document.write( "Use the Auxiliary Angle Method to solve 3cos(2x) - 2sin(2x) =1 on 0≤x≤2π, to 3DP.
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document.write( "I get four solutions, is this correct?
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document.write( "Thank you \n" );
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| Algebra.Com's Answer #838190 by ikleyn(52879)     You can put this solution on YOUR website! .\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You can easily check it graphically / visually on your own.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Go to web-site www.desmos.com/calculator.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Print there the expression of the left side - you will see the plot of the left side function.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "In the next line, print expression for the right side, which is a constant \"1\".\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Look at the interval [0,2pi) and count how many intersection points do you see there.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "==========================\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Comment from student : Thank you for your help. I did check through DESMOS and think I am correct.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "My response : I am glad that you mastered DESMOS plotting tool and learned this method \n" ); document.write( "of checking your solutions.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Come again to this forum soon to learn something new ( ! )\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |