The teacher will be very surprised to see your correct solution 😉
___ /x\ -\/ 3 tan|-| = ------- \3/ 3
sum
-pi ---- 2
=
-pi ---- 2
product
-pi ---- 2
=
-pi ---- 2
-pi/2
x1 = 17.2787595947439
x2 = -10.9955742875643
x3 = -95.8185759344887
x4 = -48.6946861306418
x5 = 26.7035375555132
x6 = 36.1283155162826
x7 = 102.101761241668
x8 = 83.2522053201295
x9 = -76.9690200129499
x10 = -39.2699081698724
x11 = 45.553093477052
x12 = 64.4026493985908
x13 = -20.4203522483337
x14 = 7.85398163397448
x15 = -1.5707963267949
x16 = -67.5442420521806
x17 = -29.845130209103
x18 = -105.243353895258
x19 = -86.3937979737193
x20 = 73.8274273593601
x21 = -58.1194640914112
x22 = 92.6769832808989
x23 = 54.9778714378214
x23 = 54.9778714378214