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Giải: Chuỗi Fourier của hàm vuông — Detailed Solution | AhaStep

Home›Math›Giải: Chuỗi Fourier của hàm vuông

📐 MathLevel 8 — 🔵 Intermediatefourier_series👁 9 views⏱ 1 min read

Giải: Chuỗi Fourier của hàm vuông

📝 Problem

Chuỗi Fourier của hàm vuông

✨Detailed Solution

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1

1. 📐 Chuỗi Fourier: Σ(aₙcos(nx) + bₙsin(nx))

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2. 🧮 Hệ số: aₙ = (1/π)∫f(x)cos(nx)dx

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bₙ = (1/π)∫f(x)sin(nx)dx

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3. 🧮 Sóng vuông: )Σ sin((2k-1)x)/(2k-1)

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📐 Lv.2

Solve: Find the Fourier series of a sawtooth wave.