推 beatitude:答案應該沒錯..218.167.165.173 06/01
推 RLpolo123:了解!!謝謝大大^^ 61.60.127.18 06/02
推 Ecko:我算差一個負號......囧rz218.175.128.121 06/07
The eauation of the normal line for
3 2
x -xy+3y =3 at (1,-2/3)
我看解答是
x-1 11/3
---------- = --------
y+2/3 -5
請問正確嗎???
(因為我覺得這答案似乎是tangent line才對吧...並非normal line)
請各位大大解惑囉
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