Mathematics · Fourier Series
The Fourier cosine coefficient an for the function f(x) defined as c - x for 0 < x ≤ c, and x for c ≤ x ≤ 2c is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1cn2π2 [1 - cos(nπ)]
- 22cn2π2 [1 - cos(nπ)]✓
- 32c2n2π2 [1 - cos(nπ)]
- 44cn2π2 [1 - cos(nπ)]
Correct answer
2cn2π2 [1 - cos(nπ)]
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