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State the Nyquist theorem
The Nyquist theorem is thermo of mathematics and has nothing to deal with technology. It says that if you have the function whose Fourier spectrum does not contain any sines or cosines above f, then by sampling function at a frequency of 2f you capture all information there is. Therefore, the Nyquist theorem is true for all types' media.
a. If a password to a cipher is exactly 8 characters long, and each character can be selected from [0-9], [a-z], and [A-Z], how many different passwords are possible? b. Suppose
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how can I establish a home net work by using cables and wieless
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