El profesor se sorprenderá mucho al ver tu solución correcta😉
(-6*cos(t) + 2*t)*3*sin(t) + (-6*cos(t) + 2*t)*3*sin(t) = 0
t1 = 69.1150383789755
t2 = 65.9734457253857
t3 = -91.106186954104
t4 = -59.6902604182061
t5 = -21.9911485751286
t6 = 12.5663706143592
t7 = 21.9911485751286
t8 = -69.1150383789755
t9 = -100.530964914873
t10 = -3.14159265358979
t11 = -25.1327412287183
t12 = -15.707963267949
t13 = -53.4070751110265
t14 = -72.2566310325652
t15 = 84.8230016469244
t16 = -81.6814089933346
t17 = -94.2477796076938
t18 = 18.8495559215388
t19 = -65.9734457253857
t20 = 94.2477796076938
t21 = 9.42477796076938
t22 = -40.8407044966673
t23 = 34.5575191894877
t24 = 0.0
t25 = 97.3893722612836
t26 = 53.4070751110265
t27 = -62.8318530717959
t28 = -2.66317888336378
t29 = -28.2743338823081
t30 = -56.5486677646163
t31 = 59.6902604182061
t32 = 91.106186954104
t33 = 15.707963267949
t34 = -18.8495559215388
t35 = 6.28318530717959
t36 = 56.5486677646163
t37 = 87.9645943005142
t38 = 31.4159265358979
t39 = 25.1327412287183
t40 = 43.9822971502571
t41 = -47.1238898038469
t42 = 72.2566310325652
t43 = -34.5575191894877
t44 = -97.3893722612836
t45 = -50.2654824574367
t46 = 100.530964914873
t47 = 81.6814089933346
t48 = -75.398223686155
t49 = 40.8407044966673
t50 = -9.42477796076938
t51 = 78.5398163397448
t52 = -87.9645943005142
t53 = 37.6991118430775
t54 = -78.5398163397448
t55 = -6.28318530717959
t56 = 50.2654824574367
t57 = -37.6991118430775
t58 = -43.9822971502571
t59 = 47.1238898038469
t60 = 28.2743338823081
t61 = 62.8318530717959
t62 = -31.4159265358979
t63 = -12.5663706143592
t64 = 75.398223686155
t65 = -84.8230016469244
t65 = -84.8230016469244