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Mathematics 9 Online
OpenStudy (anonymous):

Please Help me with understanding how to solve this: Suppose f(x) = x on 0 < x < 1 is approximated by the first five nonzero terms of its Fourier sine series. (a) Compute the (absolute) pointwise error in this approximation at x =0.025, 0.5, and 0.75. (b) Compute the uniform error in this approximation. (c) Repeat each part above using the first five nonzero terms of its Fourier cosine series.

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