Lissajous figures are used in the study of electrical
Chapter 10, Problem 10.4.47(choose chapter or problem)
Lissajous figures are used in the study of electrical circuits to determine the phase difference between a known voltage (t) A sin ( t) and an unknown voltage (t) B sin ( t ) having the same frequency. The voltages are graphed parametrically as x (t) and y (t). If is acute, thenwhere is the nonnegative y-intercept and is the maximum y-value on the curve. (a) Graph the parametric curve x (t) and y (t) for the specified range of t.(b) Use the graph to approximate in degrees.
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