Sketch 4sinc(4ω), and then determine its bandwidth. 2. f(t)=2+3cos(20πt)+2sin(20πt)+3cos(40πt)+2sin(40πt) For the given trigonometric Fourier series function with a fundamental frequency of 10 Hz, what are the values for: −a 0
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−a 1
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−a 2
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−a 3
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−a 4
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−b 1
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−b 2
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−b 3
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−b 4
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