Asked by Kevin
Why exactally does the absolute value of -3+4i = 5. I know (-3) squared plus (4i) squared = 5? Could you include a graphic approach as well? Thank you.
Answers
Answered by
bobpursley
i is an imaginary number. YOu can graph it only on the complex number plane.
Consider a rectangular graph, the x axis is the real numbers, and the y axis is imaginary numbers. THen you plot the point (-3,4). Find the distance from the origin, it is 5.
Consider a rectangular graph, the x axis is the real numbers, and the y axis is imaginary numbers. THen you plot the point (-3,4). Find the distance from the origin, it is 5.
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