1. Exercise #5, Chapter 10 of "Engineering Circuit Analysis", 8th ed. By Hayt, Kemmerly & Durbin. Determine which waveform in each of the following pairs is lagging: (a) cos 4t, sin 41; (b) cos (4t –...

Extracted text: 1. Exercise #5, Chapter 10 of "Engineering Circuit Analysis", 8th ed. By Hayt, Kemmerly & Durbin. Determine which waveform in each of the following pairs is lagging: (a) cos 4t, sin 41; (b) cos (4t – 80°), cos (4r); (c) cos (41 + 80°), cos 4t; (d) –sin 51, cos (5t + 2°); (e) sin 5t + cos 5t, cos (5t – 45°).