In the cascade amplifier circuit shown in the figure is determine the values of $R_{1}, R_{2}$ and $R_{L}$ such that the quiescent current through the transistors is $1 \mathrm{~mA}$ and the collector voltages are $\mathrm{V}_{\mathrm{C}}=3 \mathrm{~V}$ and $\mathrm{V}_{\mathrm{C} 2}=6 \mathrm{~V}$, Take $\mathrm{V}_{\mathrm{BE}}=0.7 \mathrm{~V}$, transistor $\beta$ to be high and base currents to be negligible.