pochodne Ola: pochodne : x=3sin²3t y=sint−2cost t=1/4pi

'Leszek: dx/dt = 6sin(3t)*cos(3t)*3 dy/dt = cos(t) + 2sin(t) dla t =π/4 otrzymujemy dx/dt = 9sin(6t) = 9sin(3π/2) dy/dt = cos(π/4) + 2sin(π/4) i prosze dokonczyc !