maths ~ differentiation (max or min pt)

2008-03-26 9:45 pm
Given that the curve y = x3 + kx2 - 2kx + 3 has a maximum point and a minimum point, where k is a real number. Find the range of values of k.


((plz solve the above problem...thanks a lot))

回答 (1)

2008-03-26 10:23 pm
✔ 最佳答案
Please refer to the following solution:

圖片參考:http://hk.geocities.com/stevieg_1023/DFS1.gif


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