1. given x^2-4xy-2y^2=10
a)find dy/dx
Ans: (x-2y)/2(x+y)
b)find the coordinates of the points on the curve at which the slope is 2.
Ans: (-2,1),(2,-1)
2. if the tangents to the curve y= x^3 +(k-1)x^2 +12x+7 do not parallel to the x-axis, find the range of values of k.
Ans: -5
Differentiation
2007-08-05 7:55 am
回答 (1)
2007-08-05 8:04 am
✔ 最佳答案
As follows:圖片參考：http://i117.photobucket.com/albums/o61/billy_hywung/Aug07/Crazydiff5.jpg
圖片參考：http://i117.photobucket.com/albums/o61/billy_hywung/Aug07/Crazydiff6.jpg
2007-08-05 10:02:21 補充：
Please reload the pics
參考: My maths knowledge
收錄日期: 2021-04-12 20:47:34
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