The comparators (output=$’1’$, when input $\underline{>}$ and output=$’0’$, when input$<0$), exclusive-OR gate and the unity gain low-pass filter given in the circuit are ideal. The logic output voltages of the exclusive-OR gate are $\text{0 V}$ and $\text{5 V}$. The cutoff frequency of the low-pass filter is $\text{0.1 Hz}$. For $V_1=1 \sin (3000t+36^0)V$ and $V_2=1 \sin (3000t)V$, the value of $V_0$ in $volt$ is $\_\_\_\_\_\_\_\_.$
