character: Mr. Smith
topic: Frequency Analysis in Signals
grade: 12
subject: Mathematics
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character: Ms. Johnson
topic: Signal Processing Techniques
grade: 12
subject: Mathematics
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character: Dr. Patel
topic: Applications of Fourier Transform
grade: 12
subject: Mathematics
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character: Mr. Lee
topic: Understanding Spectral Density
grade: 12
subject: Mathematics
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