阿摩線上測驗
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阿摩線上測驗
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10. Find the trigonometric polynomial F(x) of the form:
for which the square error with respect to the given f(x) = x2 on the interval -π ＜x ＜ π is minimum. Compute the minimum value for N = 1, 2, ..., 5. (10 分)