Practice Practice Exercises - 14.11 | 14. Parseval’s Theorem | Mathematics (Civil Engineering -1)
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Practice Questions

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Question 1

Easy

What is the Fourier series of f(x) = x on (-π, π)?

💡 Hint: Remember the function's symmetry when integrating.

Question 2

Easy

Verify that a₀ = 0 for f(x) = x.

💡 Hint: Consider the properties of odd functions.

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Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What does Parseval's theorem state?

  • Energy in frequency is less than time.
  • Energy in time domain equals energy in frequency domain.
  • Energy is only in the time domain.

💡 Hint: Think about how energy is represented mathematically.

Question 2

Does Parseval's theorem apply to non-periodic functions?

  • True
  • False

💡 Hint: Relate the concept to Fourier transforms.

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Challenge Problems

Push your limits with challenges.

Question 1

Prove Parseval's theorem for a function f(x) defined on [0, L] using the Fourier series.

💡 Hint: Transition to the periodic domain carefully.

Question 2

Extend Parseval’s theorem to demonstrate its validity for a sawtooth function using its Fourier series coefficients.

💡 Hint: Consider the transformation properties.

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