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7+ 9j 9.2 Find the magnitude and angle of the following numbers. a. 2+4j b. -2+4j c. 2-4j d. -2-4j

7+ 9j 9.2 Find the magnitude and angle of the following numbers. a. 2+4j b. -2+4j c. 2-4j d. -2-4j

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