Digital Signal Processing Sanjit K Mitra 3rd Edition Solution Manual -

is:

2.1 (a) The even part of the signal $x[n] = \cos(0.5\pi n)$ is $x_e[n] = \cos(0.5\pi n)$. is: 2

$$X[k_1, k_2] = \begin{bmatrix} 10 & -2 \ -2 & -2 \end{bmatrix}$$ is: 2

$$x[n_1, n_2] = \begin{bmatrix} 1 & 2 \ 3 & 4 \end{bmatrix}$$ is: 2

$$H(z) = 1 + 2z^{-1} + 3z^{-2}$$

2.2 The impulse response of the system is $h[n] = \delta[n] + 2\delta[n-1] + 3\delta[n-2]$.