El profesor se sorprenderá mucho al ver tu solución correcta😉
4 / 3*pi\ (sin(3*x) + cos(3*x)) + 3*cos|x - ----| = 7 \ 4 /
x1 = -35.3429173711891
x2 = 84.037603414408
x3 = -54.1924733382543
x4 = 33.7721211425114
x5 = -85.6083998417018
x6 = 52.6216769426862
x7 = -41.6261026997212
x8 = 46.3384915990582
x9 = 40.0553062093625
x10 = 90.3207887532609
x11 = -47.9092878681272
x12 = 71.4712328746771
x13 = 27.4889357732163
x14 = -10.2101762555931
x15 = -54.1924733663757
x16 = -98.1747704368944
x17 = 2.3561944477619
x17 = 2.3561944477619