Q9) Let X(f) be the Fourier transform of a baseband signal x(t) a with bandwidth of 64 kHz. (a) Write the expression for
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Q9) Let X(f) be the Fourier transform of a baseband signal x(t) a with bandwidth of 64 kHz. (a) Write the expression for
Q9) Let X(f) be the Fourier transform of a baseband signal x(t) a with bandwidth of 64 kHz. (a) Write the expression for the Fourier transform of -12x(t) in terms of X(f). [2 marks] (b) Find the bandwidth of - 4x(t – 5). [2 marks] (C) Find the bandwidth of -x(4t - 5). [2 marks] (d) Find the bandwidth of – x(4t – 5) sin(21103t). [2 marks]
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