El profesor se sorprenderá mucho al ver tu solución correcta😉
2 10*cos (x) + 3*cos(x) - 1 = 0
a*w^2 + b*w + c = 0
D = b^2 - 4 * a * c =
(3)^2 - 4 * (10) * (-1) = 49
w1 = (-b + sqrt(D)) / (2*a)
w2 = (-b - sqrt(D)) / (2*a)
suma
2*pi 4*pi ---- + ---- + -acos(1/5) + 2*pi + acos(1/5) 3 3
=
4*pi
producto
2*pi 4*pi ----*----*(-acos(1/5) + 2*pi)*acos(1/5) 3 3
=
2 8*pi *(-acos(1/5) + 2*pi)*acos(1/5) ----------------------------------- 9
8*pi^2*(-acos(1/5) + 2*pi)*acos(1/5)/9
2*pi x1 = ---- 3
4*pi x2 = ---- 3
x3 = -acos(1/5) + 2*pi
x4 = acos(1/5)
x4 = acos(1/5)
x1 = 32.7853649419025
x2 = 60.7374579694027
x3 = -98.4365698124802
x4 = 39.0685502490821
x5 = 64.2012914778004
x6 = -17.4801175155342
x7 = -83.7758040957278
x8 = -71.2094334813686
x9 = 23.7633028227138
x10 = -48.8960440514321
x11 = 36.329673437073
x12 = 46.0766922526503
x13 = 99.1615265088688
x14 = -46.0766922526503
x15 = 30.0464881298934
x16 = -35.6047167406843
x17 = -92.8783412016892
x18 = 16.7551608191456
x19 = -20.2189943275433
x20 = 98.4365698124802
x21 = -7.65262371318415
x22 = -74.0287852801505
x23 = 39.7935069454707
x24 = 4.18879020478639
x25 = -95.6172180136984
x26 = -32.7853649419025
x27 = -57.9181061706208
x28 = 13.9358090203637
x29 = -85.870199198121
x30 = 17.4801175155342
x31 = -4.91374690117502
x32 = -99.1615265088688
x33 = 96.342174710087
x34 = -90.0589894029074
x35 = -64.2012914778004
x36 = 85.870199198121
x37 = 4.91374690117502
x38 = 52.3598775598299
x39 = -70.48447678498
x40 = -39.0685502490821
x41 = 174.559750195024
x42 = -4.18879020478639
x43 = 10.471975511966
x44 = -61.4624146657913
x45 = -104.71975511966
x46 = 54.4542726622231
x47 = 42.6128587442525
x48 = 7.65262371318415
x49 = 57.9181061706208
x50 = 45.3517355562617
x51 = 83.0508473993392
x52 = -86.5951558945096
x53 = 61.4624146657913
x54 = -2.0943951023932
x55 = -92.1533845053006
x56 = 41.8879020478639
x57 = 397.210112758319
x58 = -77.4926187885482
x59 = 76.7676620921596
x60 = -23.7633028227138
x61 = -55.1792293586117
x62 = -54.4542726622231
x63 = 20.2189943275433
x64 = 48.1710873550435
x65 = -51.6349208634413
x66 = -10.471975511966
x67 = 83.7758040957278
x68 = -76.7676620921596
x69 = -48.1710873550435
x70 = 11.1969322083546
x71 = -67.7455999729709
x72 = -11.1969322083546
x73 = -13.9358090203637
x74 = 80.3119705873301
x75 = 92.1533845053006
x76 = -41.8879020478639
x77 = 55.1792293586117
x78 = -33.5103216382911
x79 = 77.4926187885482
x80 = -27.2271363311115
x81 = 67.7455999729709
x82 = -26.5021796347229
x83 = 8.37758040957278
x84 = -79.5870138909414
x85 = 74.0287852801505
x86 = 33.5103216382911
x87 = -30.0464881298934
x88 = 70.48447678498
x89 = -39.7935069454707
x90 = 2.0943951023932
x91 = 90.0589894029074
x92 = 26.5021796347229
x92 = 26.5021796347229