Differential Calculus (id: b4dbd3477)

本题目来源于试卷: Differential Calculus，类别为 IB数学

[填空题]
Consider the curve $ y=\frac{2 x}{1+x}$,$ x \in \mathbb{R}$,$ x \neq-1$.
1. Find $\frac{\mathrm{d} y}{\mathrm{~d} x} $.   
2. Determine the equation of the normal to the curve at the point $ \mathrm{P}(-2,4) $.   

参考答案:
空格1: 2/(1+x)^2  空格2: -1/2*x+3 


本题详细解析:

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