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E8A01: What technique shows that a square wave is made up of a sine wave and its odd harmonics?

E8A01E8A

What technique shows that a square wave is made up of a sine wave and its odd harmonics?

Answer choices for E8A01
Why this wins

The key fact is Fourier analysis. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

Direct answer summary (2024-2028 NCVEC pool)

The official correct answer for E8A01 is Fourier analysis.

The key fact is Fourier analysis. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

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