a-maths~~~

2008-05-29 4:44 am
設f(x)=(x+k)/√(x2+k),其中k為一常數。若f'(0)=2,試求k的值。

回答 (2)

2008-05-29 6:03 am
✔ 最佳答案
As follows:

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參考: My Maths knowledge
2008-05-29 5:02 am
Step 1: find f'(x)
Step 2: Sub 0 入 f'(x) 條式度
Step 3: f'(0) = Sub左0果條式 = 2
Step 4: k=1/2
參考: me


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