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Question #2: Let the discrete-time signal $x[n] = n^2(u[n+1] - u[n-2])$,\\ where $u[n] = \begin{cases} 1, & \text{when } n = 0, 1, 2, ...\\ 0, & \text{when } n = -1, -2, ... \end{cases}$ is the unit step function.\\ (a) (4 pts) Sketch $x[n]$. Remember to label your axes.\\ (b) (4 pts) Sketch $y[n] = x[-n]$. Remember to label your axes.\\ (c) (4 pts) Sketch $x[n-2]$. Remember to label your axes.\\ (d) (4 pts) Is $x[n]$ an energy signal, a power signal, or neither? If $x[n]$ is an energy signal,\ compute its energy. If $x[n]$ is a power signal, compute its power. If $x[n]$ is neither, explain why.

          Question #2: Let the discrete-time signal $x[n] = n^2(u[n+1] - u[n-2])$,\\
where $u[n] = \begin{cases} 1, & \text{when } n = 0, 1, 2, ...\\ 0, & \text{when } n = -1, -2, ... \end{cases}$ is the unit step function.\\
(a) (4 pts) Sketch $x[n]$. Remember to label your axes.\\
(b) (4 pts) Sketch $y[n] = x[-n]$. Remember to label your axes.\\
(c) (4 pts) Sketch $x[n-2]$. Remember to label your axes.\\
(d) (4 pts) Is $x[n]$ an energy signal, a power signal, or neither? If $x[n]$ is an energy signal,\
compute its energy. If $x[n]$ is a power signal, compute its power. If $x[n]$ is neither, explain why.

Question #2: Let the discrete-time signal x[n] = n^2(u[n+1] - u[n-2]),

where u[n] = 1, when n = 0, 1, 2, ...
0, when n = -1, -2, ... is the unit step function.

(a) (4 pts) Sketch x[n]. Remember to label your axes.

(b) (4 pts) Sketch y[n] = x[-n]. Remember to label your axes.

(c) (4 pts) Sketch x[n-2]. Remember to label your axes.

(d) (4 pts) Is x[n] an energy signal, a power signal, or neither? If x[n] is an energy signal,compute its energy. If x[n] is a power signal, compute its power. If x[n] is neither, explain why.

Added by Alejandra P.

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