Determine the complex exponential Fourier series representation for each of the following signals: (1) x(t) = cos(t) (2) x(t) = sin(t) (3) x(t) = cos left(2t + frac{pi}{4} ight) (4) x(t) = cos(4t) + sin(6t) (5) x(t) = sin^2(t)
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1) For x(t)cos(t), we have: $$ x(t) = \sum_{n=-\infty}^{\infty} c_n e^{jnt} $$ where $$ c_n = \frac{1}{T} \int_{0}^{T} x(t) e^{-jnt} dt $$ For x(t)cos(t), we have: $$ c_n = \frac{1}{T} \int_{0}^{T} x(t) \cos(t) e^{-jnt} dt $$ Show more…
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