: In the shown circuit i(t) = 6 cos(5t) A, and iz(t)=3 sin(5t) A. Find v;(t) %3D 3 H 3 H 4 H U2 a. 90 sin(5t) - 45 cos(5t) V O b. -90 sin(5t) - 45 cos(5t) V O C. -90 sin(5t) + 45 cos(5t) V O d. 90 sin(5t) + 45 cos(5t) V O In the shown circuit if the currents i, (t) = 12 cos (20t-30) mA and i, (t) = 10 sin (200t+45) mA, the total : energy stored in system at t = 0 is %3D %3D k = 0.8 i2 5 H 1.25 H : a. 57.5 w O b. 30.4 uJ O C. 154.20 u J O d. 208.05 J O