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  • Choose the function $f(t); -\infty \lt 1 \lt +\infty$for ...
Multiple choice

Choose the function $f(t); -\infty \lt 1 \lt +\infty$for which a Fourier series cannot be defined.

  1. 3 sin (25t)

  2. 4 cos (20t + 3) + 2sin (10t)

  3. exp (-|t|) sin(25t)

  4. 1

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

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