Exer. 6972: The trigonometric form of complex numbers is
Chapter 8, Problem 69(choose chapter or problem)
Exer. 6972: The trigonometric form of complex numbers is often used by electrical engineers to describe the current I, voltage V, and impedance Z in electrical circuits with alternating current. Impedance is the opposition to the flow of current in a circuit. Most common electrical devices operate on 115-volt, alternating current. The relationship among these three quantities is Approximate the unknown quantity, and express the answer in rectangular form to two decimal places.
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