Lissajous Figures Are Used in the Study of Electrical Circuits

question 87

Multiple Choice

Lissajous figures are used in the study of electrical circuits to determine the phase difference between a known voltage and an unknown voltage having the same frequency. The voltages are graphed parametrically as and . If is acute, then where y _int is the nonnegative y -intercept and y _max is the maximum y -value on the curve. Graph the parametric curve and use the graph to approximate in degrees if

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