ALGEBRA 2
Lesson 86 of 95

IMAGINARY NUMBERS
Beginning Imaginary Numbers
Students learn that the imaginary number "i" is equal to the square root of -1, which means that i^2 is equal to (the square root of -1) squared, which equals -1. Students also learn to simplify imaginary numbers. For example, to simplify the square root of -81, think of it as the square  more...
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