The teacher will be very surprised to see your correct solution 😉
2/ 2 0\ sin(x)*cos \x - 18 /*log(x) = 0
sum
________ ________ __________ __________ / pi / pi / 3*pi / 3*pi 0 + 0 + 1 + pi - / 1 + -- + / 1 + -- - / 1 + ---- + / 1 + ---- \/ 2 \/ 2 \/ 2 \/ 2
=
1 + pi
product
________ ________ __________ __________ / pi / pi / 3*pi / 3*pi 1*0*1*pi*- / 1 + -- * / 1 + -- *- / 1 + ---- * / 1 + ---- \/ 2 \/ 2 \/ 2 \/ 2
=
0
0
x1 = 0
x2 = 1
x3 = pi
________ / pi x4 = - / 1 + -- \/ 2
________ / pi x5 = / 1 + -- \/ 2
__________ / 3*pi x6 = - / 1 + ---- \/ 2
__________ / 3*pi x7 = / 1 + ---- \/ 2
x1 = 59.6561286083385
x2 = -31.7471328690172 + 7.84291066862649e-9*i
x3 = 87.9645943005142
x4 = -81.6814089933346
x5 = 74.2490694279467
x6 = 4.2753666060065
x7 = 8.2791450539941
x8 = -53.6681438751124 + 9.23502522295009e-11*i
x9 = 15.433413281273
x10 = -29.7549715491264 + 3.847521963444e-11*i
x11 = -1.6033703648877 + 4.1387293024864e-9*i
x12 = -65.9734457253857
x13 = -87.9645943005142
x14 = -6.58874050682241 + 5.4985198129415e-8*i
x15 = 50.2520616245552
x16 = -15.7357879841207 + 3.15930609491369e-11*i
x17 = -28.2937330452244 - 1.31167846330797e-8*i
x18 = 21.9911485751286
x19 = 84.8155432885481
x20 = 6.28318530717959
x21 = -35.7499288626941 + 4.8266158446582e-15*i
x22 = 65.9734457253857
x23 = 43.9822971502571
x24 = 2.39006046706877
x25 = 35.5295574183656
x26 = -9.99800823511318 + 1.05250905928972e-11*i
x27 = 70.4495961409467
x28 = 72.2548004896249
x29 = 28.2743338823081
x30 = 12.2566574137479
x31 = 92.2496813129089
x32 = 81.6833643065476
x33 = 91.2050796264251
x34 = 53.6681438778036
x35 = 94.2477796076938
x36 = 75.398223686155
x37 = 54.2503596314378
x38 = 78.5262732033081
x39 = -43.9822971502571
x40 = -21.9911485751286
x41 = -41.749408695192 + 9.76356914262911e-13*i
x42 = 100.497012815706
x43 = -47.7517064613041 + 2.49215230991236e-13*i
x44 = 25.179970586643
x45 = -56.4914802563167 + 4.35991538768771e-9*i
x46 = 34.5432253201205
x47 = 31.3988740680803
x48 = 96.2496022808794
x49 = 56.5470646526275
x50 = 46.247743739406
x51 = -11.9976025137874 + 3.79882033300331e-11*i
x52 = 9.51500867266446
x53 = 9.99800823285217
x54 = -25.5515259048881 - 1.0104651016673e-8*i
x55 = 40.8407044966673
x56 = -37.6753113257816 - 8.25402267869296e-10*i
x56 = -37.6753113257816 - 8.25402267869296e-10*i