The teacher will be very surprised to see your correct solution 😉
sum
/ ___\ atan\2*\/ 6 /
=
/ ___\ atan\2*\/ 6 /
product
/ ___\ atan\2*\/ 6 /
=
/ ___\ atan\2*\/ 6 /
atan(2*sqrt(6))
/ ___\ x1 = atan\2*\/ 6 /
x1 = atan(2*sqrt(6))
x1 = 98.7588106672882
x2 = -52.0376367050219
x3 = 64.2012914778004
x4 = -96.019933855279
x5 = -8.05533955476481
x6 = -45.7544513978423
x7 = 57.9181061706208
x8 = -23.7633028227138
x9 = -89.7367485480994
x10 = -30.0464881298934
x11 = 723.935748731657
x12 = -67.7455999729709
x13 = 42.2101429026719
x14 = 86.192440052929
x15 = 70.48447678498
x16 = 73.6260694385698
x17 = -74.0287852801505
x18 = 13.9358090203637
x19 = 35.9269575954923
x20 = -1.77215424758523
x21 = 20.2189943275433
x22 = 321.811889072163
x22 = 321.811889072163