Figure \(\mathrm{P}_{2}-31\) shows a circuit with two switches.

(a) How would you select the switches (open or closed) to achieve an \(R_{\mathrm{EQ}}\) of \(167 \Omega\) ?
(b) How would you select the switches (open or closed) to achieve an \(R_{\mathrm{EQ}}\) of \(100 \Omega\) ?
(c) How would you select the switches (open or closed) to achieve an \(R_{\mathrm{EQ}}\) of \(200 \Omega\) ?

(d) How would you select the switches (open or closed) to achieve an \(R_{\mathrm{EQ}}\) of \(267 \Omega\) ?

REQ 50 200 SWI 100 200 SW 2 ww 200 50