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Paraméteres görbe

作者：Száldobágyi Zsigmond
Forrás: http://www.tankonyvtar.hu/hu/tartalom/tamop412A/2011-0023_Matematika_1/data/h1-00-05-07.html
Forrás: Show that the curve with parametric equations x=sint, y=sin(t+sint) has two tangent lines at the origin and find their equations. Illustrate by graphing the curve and its tangents.
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