El profesor se sorprenderá mucho al ver tu solución correcta😉
cos(5*x) -------- = -1 sin(4*x)
cos5*x = 0
x1 = 45.2040276266531
x2 = -75.5727566113545
x3 = -42.0624349730633
x4 = -30.1941960595019
x5 = -16.2315620435473
x6 = 84.2994028713261
x7 = -42.7605666738611
x8 = 228.114533235659
x9 = 88.4881930761125
x10 = -23.9110107523223
x11 = 44.5058959258554
x12 = 66.1479786505851
x13 = 68.2423737529783
x14 = 71.733032256967
x15 = 20.0712863979348
x16 = -93.7241808320955
x17 = 54.2797397370236
x18 = -35.7792496658838
x19 = -72.0820981073658
x20 = -26.0054058547155
x21 = -91.6297857297023
x22 = -17.6278254451427
x23 = 45.9021593274509
x24 = -34.3829862642883
x25 = 32.637657012294
x26 = 64.0535835481919
x27 = -19.7222205475359
x28 = -63.704517697793
x29 = 56.3741348394168
x30 = -47.6474885794452
x31 = -81.8559419185341
x32 = -28.0998009571087
x33 = 26.3544717051144
x34 = -78.3652834145454
x35 = 18.6750229963393
x36 = -16.929693744345
x37 = 61583.4190578443
x38 = -35.081117965086
x39 = 96.1676417848876
x40 = -5.75958653158129
x41 = 94.0732466824944
x42 = -31.5904594610974
x43 = -69.9877030049726
x44 = 47.9965544298441
x45 = -100.007366139275
x46 = 27.7507351067098
x47 = -56.025068989018
x48 = -60.2138591938044
x49 = 8.20304748437335
x50 = 82.2050077689329
x51 = 1.91986217719376
x52 = 6.10865238198015
x53 = 62.6573201465964
x54 = 4.01425727958696
x55 = -87.4409955249159
x56 = 38.2227106186758
x57 = 24.2600766027212
x58 = 31.9395253114962
x59 = 34.0339204138894
x60 = 50.0909495322373
x61 = -103.498024643264
x62 = -97.9129710368819
x63 = -67.8933079025794
x64 = 12.3918376891597
x65 = -12.0427718387609
x66 = -53.9306738866248
x67 = -79.7615468161409
x68 = -65.7989128001862
x69 = -56.7232006898157
x70 = -37.873644768277
x71 = 98.2620368872808
x72 = 78.0162175641465
x73 = 52.1853446346305
x74 = 59.8647933434055
x75 = -61.6101225953998
x76 = -3.66519142918809
x77 = 40.317105721069
x78 = 70.3367688553715
x79 = 39.6189740202713
x80 = 89.884456477708
x81 = -86.0447321233204
x82 = 0.523598775598299
x83 = -9.94837673636768
x84 = 22.165681500328
x85 = -21.8166156499291
x86 = 13.7881010907552
x87 = -74.176493209759
x88 = -43.4586983746588
x89 = -49.7418836818384
x90 = 15.8824961931484
x91 = 9.59931088596881
x92 = 100.356431989674
x93 = 75.9218224617533
x93 = 75.9218224617533