El profesor se sorprenderá mucho al ver tu solución correcta😉
2*sin(2*x) - sin(x)*cos(x) - 3*cos(2*x) = 0
x1 = 30.3987045680001
x2 = 60.2438347771031
x3 = 22.5447229340256
x4 = -71.7030566736682
x5 = 69.6686127378725
x6 = -41.8579264645652
x7 = -32.4331485037958
x8 = -55.9950934057192
x9 = -35.5747411573856
x10 = 46.106667835949
x11 = -63.8490750396937
x12 = -57.5658897325141
x13 = 465.509287090186
x14 = -21.4375742162315
x15 = 8.40755599287153
x16 = 75.9517980450521
x17 = -293.185338751749
x18 = -19.8667778894366
x19 = 36.6818898751797
x20 = 68.0978164110776
x21 = -18.2959815626417
x22 = -65.4198713664886
x23 = -12.0127962554621
x24 = -84.2694272880274
x25 = -27.7207595234111
x26 = -98.4065942291814
x27 = -49.7119080985396
x28 = 83.8057796790266
x29 = -87.4110199416172
x30 = 24.1155192608205
x31 = 91.6597613130011
x32 = -26.1499631966162
x33 = 33.5402972215899
x34 = -13.583592582257
x35 = -76.4154456540529
x36 = 31.969500894795
x37 = 90.0889649862062
x38 = -95.2650015755917
x39 = -73.2738530004631
x40 = -77.9862419808478
x41 = -7.30040727507744
x42 = -51.2827044253345
x43 = -48.1411117717447
x44 = -40.2871301377703
x45 = 3.69516701248684
x46 = -99.9773905559763
x47 = 9.97835231966642
x48 = 17.8323339536409
x49 = 66.5270200842827
x50 = -34.0039448305907
x51 = -92.1234089220019
x52 = 61.814631103898
x53 = 39.8234825287695
x54 = -5.72961094828254
x55 = 52.3898531431286
x56 = 96.3721502933857
x57 = -4.15881462148764
x58 = 11.5491486464613
x59 = -29.291555850206
x60 = 82.2349833522317
x61 = -43.4287227913601
x62 = 0.553574358897045
x63 = 97.9429466201806
x64 = 58.6730384503082
x65 = 47.6774641627439
x66 = -10.4419999286672
x67 = 38.2526862019746
x68 = -79.5570383076427
x69 = 25.6863155876154
x70 = 74.3810017182572
x71 = -70.1322603468733
x72 = -54.4242970789243
x73 = 80.6641870254368
x74 = 77.522594371847
x75 = 99.5137429469755
x76 = 44.5358715091541
x77 = 88.5181686594113
x78 = 53.9606494699235
x79 = 2.12437068569194
x80 = -93.6942052487967
x81 = 16.261537626846
x82 = 55.5314457967184
x83 = -85.8402236148223
x84 = -62.2782787128988
x85 = 14.6907413000511
x85 = 14.6907413000511