Line 12: Line 12:
 
x_2(t) &= \cos t \\
 
x_2(t) &= \cos t \\
 
x_3 (t) &= \sin \frac{t}{2} \\
 
x_3 (t) &= \sin \frac{t}{2} \\
x_4(t) & = sin \left(t-\frac{\pi}{2} \right)
+
x_4(t) & = \sin \left(t-\frac{\pi}{2} \right)
 
\end{align}
 
\end{align}
 
</math>
 
</math>

Revision as of 10:52, 7 January 2013

Practice Problem: the definition of a set


Does the following collection of signals form a set?

$ \begin{align} x_1(t) &= \sin t \\ x_2(t) &= \cos t \\ x_3 (t) &= \sin \frac{t}{2} \\ x_4(t) & = \sin \left(t-\frac{\pi}{2} \right) \end{align} $

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Back to ECE302 Spring 2013 Prof. Boutin

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