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2 2*cos (x) + sin(x) + 1 = 0
a*w^2 + b*w + c = 0
D = b^2 - 4 * a * c =
(1)^2 - 4 * (-2) * (3) = 25
w1 = (-b + sqrt(D)) / (2*a)
w2 = (-b - sqrt(D)) / (2*a)
-pi x1 = ---- 2
/ / ___\\ / / ___\\ | |2 I*\/ 5 || | |2 I*\/ 5 || x2 = 2*re|atan|- - -------|| + 2*I*im|atan|- - -------|| \ \3 3 // \ \3 3 //
/ / ___\\ / / ___\\ | |2 I*\/ 5 || | |2 I*\/ 5 || x3 = 2*re|atan|- + -------|| + 2*I*im|atan|- + -------|| \ \3 3 // \ \3 3 //
x3 = 2*re(atan(2/3 + sqrt(5)*i/3)) + 2*i*im(atan(2/3 + sqrt(5)*i/3))
suma
/ / ___\\ / / ___\\ / / ___\\ / / ___\\ pi | |2 I*\/ 5 || | |2 I*\/ 5 || | |2 I*\/ 5 || | |2 I*\/ 5 || - -- + 2*re|atan|- - -------|| + 2*I*im|atan|- - -------|| + 2*re|atan|- + -------|| + 2*I*im|atan|- + -------|| 2 \ \3 3 // \ \3 3 // \ \3 3 // \ \3 3 //
=
/ / ___\\ / / ___\\ / / ___\\ / / ___\\ | |2 I*\/ 5 || | |2 I*\/ 5 || pi | |2 I*\/ 5 || | |2 I*\/ 5 || 2*re|atan|- - -------|| + 2*re|atan|- + -------|| - -- + 2*I*im|atan|- - -------|| + 2*I*im|atan|- + -------|| \ \3 3 // \ \3 3 // 2 \ \3 3 // \ \3 3 //
producto
/ / / ___\\ / / ___\\\ / / / ___\\ / / ___\\\ -pi | | |2 I*\/ 5 || | |2 I*\/ 5 ||| | | |2 I*\/ 5 || | |2 I*\/ 5 ||| ----*|2*re|atan|- - -------|| + 2*I*im|atan|- - -------|||*|2*re|atan|- + -------|| + 2*I*im|atan|- + -------||| 2 \ \ \3 3 // \ \3 3 /// \ \ \3 3 // \ \3 3 ///
=
/ / / ___\\ / / ___\\\ / / / ___\\ / / ___\\\ | | |2 I*\/ 5 || | |2 I*\/ 5 ||| | | |2 I*\/ 5 || | |2 I*\/ 5 ||| -2*pi*|I*im|atan|- - -------|| + re|atan|- - -------|||*|I*im|atan|- + -------|| + re|atan|- + -------||| \ \ \3 3 // \ \3 3 /// \ \ \3 3 // \ \3 3 ///
-2*pi*(i*im(atan(2/3 - i*sqrt(5)/3)) + re(atan(2/3 - i*sqrt(5)/3)))*(i*im(atan(2/3 + i*sqrt(5)/3)) + re(atan(2/3 + i*sqrt(5)/3)))
x1 = -139.800873249665
x2 = -14.1371668388268
x3 = -89.535390747472
x4 = 36.1283156694962
x5 = -76.9690202883133
x6 = 4.71238876303057
x7 = -70.6858348853437
x8 = 67.5442425428501
x9 = 92.676983075166
x10 = 92.6769826279201
x11 = -95.8185758681129
x12 = -20.420352026649
x13 = 17.2787593859766
x14 = -39.2699083927222
x15 = 48.6946859189952
x16 = 86.3937984757401
x17 = 98.9601687890347
x18 = 48.6946855745421
x19 = 23.5619454986408
x20 = -83.2522052663543
x21 = 29.8451303209123
x22 = 67.5442422847282
x23 = 86.3937983369643
x24 = -83.2522055482568
x25 = 54.9778716517999
x26 = 4.71238853044362
x27 = 42.4115007288249
x28 = 73.8274274802772
x29 = -32.9867231376832
x30 = -76.969019769254
x31 = -58.119464161524
x32 = -20.4203515680363
x33 = -64.402649182671
x34 = 23.5619451291519
x35 = -7.85398149817977
x36 = -83.2522055805072
x37 = -51.8362786896646
x38 = 4087901.62190845
x39 = 61.2610565245164
x40 = 86.3937978948071
x41 = -26.7035372754773
x42 = -14.1371675548369
x43 = -39.2699085196455
x44 = 10.9955745128692
x45 = -102.101761152532
x46 = -32.9867226275421
x47 = 61.2610570268883
x48 = 54.9778711648428
x49 = -70.6858349737007
x50 = -1.57079643014235
x51 = 86.3937978880117
x52 = -45.5530935889045
x53 = 10.9955740133772
x54 = 98.9601683166916
x55 = -58.1194639990021
x56 = 17.278759875892
x57 = -70.6858344272025
x58 = -1.57079608708683
x59 = -26.703537750735
x60 = -64.4026487407202
x61 = 80.1106131421182
x61 = 80.1106131421182