Solution Found!
Find A, B, C, and if 40 cos(100t 40) 20 sin(100t + 170) = A cos 100t + B sin 100t = C
Chapter 10, Problem 10.2(choose chapter or problem)
QUESTION:
Find A, B, C, and \(\phi\) if \(40\ cos (110t - 40^{\circ}) - 20\ sin (100t + 170^{\circ}) = A\ cos\ 100t + B\ sin\ 100t = C\ cos(100t + \phi)\).
Questions & Answers
QUESTION:
Find A, B, C, and \(\phi\) if \(40\ cos (110t - 40^{\circ}) - 20\ sin (100t + 170^{\circ}) = A\ cos\ 100t + B\ sin\ 100t = C\ cos(100t + \phi)\).
ANSWER:Step 1 of 7
Consider the equation;
.......(1)
Using the trigonometric formulae