Chapter 2, Problem 2.3P

The instantaneous voltage across a circuit element is $v\left(t\right)=400\sin \left(\omega t+30°\right)\text{volts}$, and the instantaneous current entering the positive terminal of the circuit element is $i\left(t\right)=100\cos \left(\omega t+10°\right)\text{A}$. For both the current and voltage, determine (a) the maximum value, (b) the rms value, and (C) the phasor expression, using $\cos \left(\omega t\right)$ as the reference.