Time domain expressions for the voltage $v_1(t)$ and $v_2(t)$ are given as
$$v_1(t)=V_m\sin(10t-130^\circ)\; and\; v_2(t)=V_m\cos(10t+10^\circ)$$
Which one of the following statements is $TRUE$?
- $v_1(t)$ leads $v_2(t)$ by $130^\circ$
- $v_1(t)$ lags $v_2(t)$ by $130^\circ$
- $v_1(t)$ lags $v_2(t)$ by $-130^\circ$
- $v_1(t)$ leads $v_2(t)$ by $-130^\circ$