Take the function f(x)=1-x2 (0≤x≤π) expands into a cosine series and computes

匿名用户 最后更新于 2021-09-13 02:23 数学类Mathematics

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Take the function(x)=1-x2(0≤x≤π)xpands into cosine series and computes the sums-1)n-12n=1


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