Consider the Analog Signal $\cos \left( 2 \pi f _ { o } t \right) \text { with } f _ { o } = 2 \mathrm { kHz } \text {. }$

question 5

Essay

Consider the analog signal $\cos \left( 2 \pi f _ { o } t \right) \text { with } f _ { o } = 2 \mathrm { kHz } \text {. }$ A value of $f _ { s }$ is chosen that produces aliasing.If the aliasing frequency equals fa = 200Hz, the sampling rate $f _ { 5 }$ that caused this aliasing can be either ____ kHz or ____ kHz.

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