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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\n" ); document.write( "\n" ); document.write( "find all values of ⊖ in the interval 0°≤ ⊖ < 360° that satisfy the equation 2cosē⊖ = cos ⊖ + 1
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Algebra.Com's Answer #379627 by Alan3354(69443)\"\" \"About 
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find all values of ⊖ in the interval 0°≤ ⊖ < 360° that satisfy the equation 2cosē⊖ = cos ⊖ + 1
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\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
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\n" ); document.write( "x = cos = -1/2
\n" ); document.write( "theta = 120, 240 degs
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