[微分] 切線方程式

[chat543 (小ㄐ)]

The graph of x^2/3 + y^2/3 = 1 , is called a hypocycloid,

(a)find equations of the tangent lines to the graph at the points

   corresponding to x= 1/8


應該是先為分再帶入x

但是他沒給y的座標

那我該怎麼求?

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推 doa2:當然是把1/8帶入原來的式子 得到y=(3根號3)/8
→ chat543:喔喔~= =~又耍白痴了XDDD