Given the Fourier series in cosine form F(t) = 5 cos 20πt + 2 cos 40nt + cos 80mt. What is the frequency of the fundamental? a. 20 b. 40 c. 10 d. 60

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A: Follow the steps.

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A: solution is given below:

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A: To Evaluate: ∫03/2∫x/32x-x2dydxx2+y2.

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Q: 2) If A =,find grad(div A), where r is a position vector.

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Q: e) Calculate Fourier series of f(x) = x²₁ -π < x < ₁ p = 2π.

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Q: The non-exact differential...(x² + y²)dx + (3xy2 + 2xy + x³)dy = 0 can be reduced to exact after…

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Q: 3. x (x^2 In y - 1) dy + 2y dx = 0; y(3) = 4. y(x)=2. Determine the particular solution.

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Q: dr 2√√x+3 Evaluate: ₁2 ○1-3 ln(7/5) O2-3 ln(7/5) 2 O2+31n7 03-In()

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