document.write( "Question 601201: greetings im in desperate need of help with this problem.i will comment and like your profile guaranteed and please show the work. \r
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document.write( "find all values of ⊖ in the interval 0°≤ ⊖ < 360° that satisfy the equation 2cosē⊖ = cos ⊖ + 1 \n" );
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Algebra.Com's Answer #379627 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! find all values of ⊖ in the interval 0°≤ ⊖ < 360° that satisfy the equation 2cosē⊖ = cos ⊖ + 1 \n" ); document.write( "----------------- \n" ); document.write( "Sub x for cos(theta) \n" ); document.write( "2x^2 = x + 1 \n" ); document.write( "2x^2 - x - 1 = 0 \n" ); document.write( "(2x + 1)*(x - 1) = 0 \n" ); document.write( "x = 1 \n" ); document.write( "cos = 1 \n" ); document.write( "theta = 90 degs \n" ); document.write( "----------- \n" ); document.write( "x = cos = -1/2 \n" ); document.write( "theta = 120, 240 degs \n" ); document.write( " \n" ); document.write( " |