y = ax3+bx2+cx+d y = (x−−b−√b2−3ac/a3a)(√ax+2b−√b2−3ac/a6√a)2 = (x−−b+√b2−3ac/a3a)(√ax+2b+√b2−3ac/a6√a)2 T.theodor 2022.10.1
x2/a2+y2/b2 = 1 ∠POV1 = θ x = √a2b2/b2+tan2θ y = √a2b2/b2+tan2θtanθ T.theodor 2022.10.1
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