Determine the $v_o(t)$ for $t>0$ in the circuit below:

Determine the $i_o(t)$ for $t>0$ in the circuit below:

Do the following

Determine the frequency of the following two currents and the phase angle between them.

$i_1(t)=4cos(754t-60)A$

$i_2(t)=3cos(754t+20)A$

Determine the frequency of the following voltages and the phase angle between them.

$v_1(t)=100sin(377t+25)V$

$v_2(t)=60cos(377t-40)V$