Express the following numbers in Cartesian(rectangular) form: \text { (a) } w_{\mathrm{a}}=j+e^{j} \text { (b) } w_{\mathrm{b}}=3 e^{j \pi / 4} \text { (c) } w_{\mathrm{c}}=1 / e^{j} \text { (d) } w_{\mathrm{d}}=(1+j)(-4+j 3) \text { (e) } w_{e}=e^{i \pi / 4}+2 e^{-j \pi / 4} \text { (f) } w_{\mathrm{f}}=e^{j}+1 \text { (g) } w_{\mathrm{g}}=1 / 2^{j} \text { (h) } w_{\mathrm{h}}=j^{\prime} \text { ( } j \text { raised to the } j \text { raised to the } j \text { ) }