本题目来源于试卷: Differential Calculus，类别为 IB数学
[问答题]
Consider the function de9, +-+ljzgk rmrr.yowfined bfyc6l icrkk0n-qf9n+ la,vod j0x)q (6u)l+ by $ f(x)=(1-x) \sqrt{2 x-x^{2}} $ where $0 \leq x \leq 2 $.
1. Show that f(1-x)=-f(1+x) , for $-1 \leq x \leq 1 $.
2. Find $f^{\prime}(x)$ .
3. Hence find the x -coordinates of any local minimum or maximum points.
4. Find the range of f .
5. Sketch the graph of y=f(x) , indicating clearly the coordinates of the x -intercepts and any local maximum or minimum points.
6 . Find the area of the region enclosed by the graph of y=f(x) on the x -axis, for $ 0 \leq x \leq 1$ .
7. Show that $\int_{0}^{2}|f(x)| d x>\left|\int_{0}^{2} f(x) d x\right| $.
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