(Created page with "==Problem== Compute the energy and the power of the CT sinusoidal signal below: <math>x(t)= \cos (5t)</math> ==Solution== <math>\begin{align} \left|\cos(5t)|^{2} = \cos^2(5...") |
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− | \left|\cos(5t)|^{2} = \cos^2(5t) // | + | \left|\cos(5t)\right|^{2} = \cos^2(5t) // |
\end{align}</math> | \end{align}</math> |
Revision as of 18:17, 1 December 2018
Problem
Compute the energy and the power of the CT sinusoidal signal below:
$ x(t)= \cos (5t) $
Solution
$ \begin{align} \left|\cos(5t)\right|^{2} = \cos^2(5t) // \end{align} $