Дано

$$cos{left (6 x right )} = cos{left (4 x right )}$$
Ответ
$$x_{1} = 0$$

x2 = pi

$$x_{2} = pi$$

/ ___________
| ___ ___ / ___ |
| 1 / 5 I*/ 2 */ 5 + / 5 |
x3 = -I*log|- – + —– – ———————-|
4 4 4 /

$$x_{3} = – i log{left (- frac{1}{4} + frac{sqrt{5}}{4} – frac{sqrt{2} i}{4} sqrt{sqrt{5} + 5} right )}$$

/ ___________
| ___ ___ / ___ |
| 1 / 5 I*/ 2 */ 5 + / 5 |
x4 = -I*log|- – + —– + ———————-|
4 4 4 /

$$x_{4} = – i log{left (- frac{1}{4} + frac{sqrt{5}}{4} + frac{sqrt{2} i}{4} sqrt{sqrt{5} + 5} right )}$$

/ ___________
| ___ ___ / ___ |
|1 / 5 I*/ 2 */ 5 – / 5 |
x5 = -I*log|- + —– – ———————-|
4 4 4 /

$$x_{5} = – i log{left (frac{1}{4} + frac{sqrt{5}}{4} – frac{sqrt{2} i}{4} sqrt{- sqrt{5} + 5} right )}$$

/ ___________
| ___ ___ / ___ |
|1 / 5 I*/ 2 */ 5 – / 5 |
x6 = -I*log|- + —– + ———————-|
4 4 4 /

$$x_{6} = – i log{left (frac{1}{4} + frac{sqrt{5}}{4} + frac{sqrt{2} i}{4} sqrt{- sqrt{5} + 5} right )}$$

/ ___________
| ___ ___ / ___ |
| 1 / 5 I*/ 2 */ 5 – / 5 |
x7 = -I*log|- – – —– – ———————-|
4 4 4 /

$$x_{7} = – i log{left (- frac{sqrt{5}}{4} – frac{1}{4} – frac{sqrt{2} i}{4} sqrt{- sqrt{5} + 5} right )}$$

/ ___________
| ___ ___ / ___ |
| 1 / 5 I*/ 2 */ 5 – / 5 |
x8 = -I*log|- – – —– + ———————-|
4 4 4 /

$$x_{8} = – i log{left (- frac{sqrt{5}}{4} – frac{1}{4} + frac{sqrt{2} i}{4} sqrt{- sqrt{5} + 5} right )}$$

/ ___________
| ___ ___ / ___ |
|1 / 5 I*/ 2 */ 5 + / 5 |
x9 = -I*log|- – —– – ———————-|
4 4 4 /

$$x_{9} = – i log{left (- frac{sqrt{5}}{4} + frac{1}{4} – frac{sqrt{2} i}{4} sqrt{sqrt{5} + 5} right )}$$

/ ___________
| ___ ___ / ___ |
|1 / 5 I*/ 2 */ 5 + / 5 |
x10 = -I*log|- – —– + ———————-|
4 4 4 /

$$x_{10} = – i log{left (- frac{sqrt{5}}{4} + frac{1}{4} + frac{sqrt{2} i}{4} sqrt{sqrt{5} + 5} right )}$$
Численный ответ

x1 = 74.1415866247000

x2 = 66.6017642561000

x3 = -96.1327351998000

x4 = 98.0176907920000

x5 = 10.0530964915000

x6 = 50.2654824465000

x7 = -57.8053048261000

x8 = -73.5132680940000

x9 = -33.9292006588000

x10 = 25.1327414632000

x11 = 54.0353936417000

x12 = 84.1946831162000

x13 = -25.7610597594000

x14 = -37.6991118749000

x15 = -15.7079632528000

x16 = -32.0442450666000

x17 = -294.681390907000

x18 = 43.9822971687000

x19 = 28.2743338656000

x20 = -35.8141562509000

x21 = 18.2212373908000

x22 = 5.65486677646000

x23 = 30.1592894745000

x24 = -47.7522083346000

x25 = -11.9380520836000

x26 = 20.1061929830000

x27 = -79.7964534012000

x28 = -13.8230076758000

x29 = 33.9292006588000

x30 = 6.28318528511000

x31 = 40.2123859659000

x32 = -9.42477801504000

x33 = 64.0884901332000

x34 = 65.9734457512000

x35 = -59.6902604543000

x36 = -89.8495498927000

x37 = -20.1061929830000

x38 = 8.16814089933000

x39 = 82.3097275241000

x40 = -76.0265422169000

x41 = -87.9645943617000

x42 = -86.0796387084000

x43 = 86.0796387084000

x44 = 21.9911485850000

x45 = 87.9645943090000

x46 = 0.0

x47 = 60.3185789489000

x48 = -69.7433569097000

x49 = 38.3274303738000

x50 = 72.2566310277000

x51 = 52.1504380496000

x52 = -91.7345054848000

x53 = -65.9734456977000

x54 = -1.88495559215000

x55 = -15.7079632951000

x56 = 42.0973415581000

x57 = -81.6814090333000

x58 = -43.9822971753000

x59 = -52.7787565803000

x60 = -70.3716754404000

x61 = -10.0530964915000

x62 = -55.9203492339000

x63 = -21.9911485866000

x64 = -88.5929128312000

x65 = -45.8672527424000

x66 = 87.9645943328000

x67 = -3.76991118431000

x68 = -42.0973415581000

x69 = -98.0176907920000

x70 = 49.0088453960000

x71 = 32.0442450666000

x72 = 94.2477796094000

x73 = -25.1327413458000

x74 = -23.8761041673000

x75 = 55.9203492339000

x76 = -54.0353936417000

x77 = 81.6814089320000

x78 = 1.88495559215000

x79 = -94.2477796879000

x80 = -67.8584013175000

x81 = 92.3628240155000

x82 = -64.0884901332000

x83 = 96.1327351998000

x84 = 101.159283446000

x85 = 11.9380520836000

x86 = -99.9026463842000

x87 = -4.39822971503000

x88 = 24.5044226980000

x89 = -65.9734457667000

x90 = 76.0265422169000

x91 = -77.9114978090000

x92 = 62.2035345411000

x93 = 44.6106156810000

   
4.54
plachich
практикующий юрист в сфере гражданского, уголовного, арбитражного и другого права, Из видов работ предпочитаю: курсовые, дипломные, контрольные, а также тесты; отношу себя к специалистам по рерайту