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![1 point) Find the Fourier approximation to f(x) = 1 + x + cos x over the interval [-1, 1] using the orthogonal set {1, sin x, cos x, sin 2x, cos](https://wegglab.com/wp-content/uploads/2020/09/image-340.png "1 point) Find the Fourier approximation to f(x) = 1 + x + cos x over the interval [-1, 1] using the orthogonal set {1, sin x, cos x, sin 2x, cos")
1 point) Find the Fourier approximation to f(x) = 1 + x + cos x over the interval [-1, 1] using the orthogonal set {1, sin x, cos x, sin 2x, cos
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