The teacher will be very surprised to see your correct solution 😉
with the change of sign in 0
sum
2*pi
=
2*pi
product
0*2*pi
=
0
0
x1 = 69.1150383789755
x2 = -50.2654824574367
x3 = 25.1327412287183
x4 = 18.8495559215388
x5 = 56.5486677646163
x6 = 94.2477796076938
x7 = -69.1150383789755
x8 = -81.6814089933346
x9 = 50.2654824574367
x10 = 43.9822971502571
x11 = 87.9645943005142
x12 = -43.9822971502571
x13 = -6.28318530717959
x14 = -18.8495559215388
x15 = 81.6814089933346
x16 = -62.8318530717959
x17 = 6.28318530717959
x18 = -94.2477796076938
x19 = -12.5663706143592
x20 = -226.194671058465
x21 = 75.398223686155
x22 = -75.398223686155
x23 = -31.4159265358979
x24 = 62.8318530717959
x25 = -56.5486677646163
x26 = -106.814150222053
x27 = -87.9645943005142
x28 = 37.6991118430775
x29 = -25.1327412287183
x30 = 100.530964914873
x31 = -37.6991118430775
x32 = 0.0
x33 = 31.4159265358979
x34 = 12.5663706143592
x35 = -100.530964914873
x35 = -100.530964914873