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Imaginary numbers

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Imaginary numbers arise when a number is squared to produce a negative result. They are represented using the symbol (i), such that √-9 = 3i. Imaginary numbers can be used to solve equations involving negative results by including (i) in the calculation. Examples of imaginary numbers include √-9 = 3i, √-25 = 5i, (3+2i)(3-2i) = 13, and (3+2i) + (5-6i) = -5-12i.

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Imaginary NumbersAlyssa BarnettW1
Imaginary NumbersAn imaginary number occurs when a number is squared and is given a negative result. When dealing with an imaginary number you can simply solve the equation by using an (i)
(i)Anytime there is an (i) in a problem, that is the imaginary number which means the problem had a negative result.
Examples√-9 = 3i√-25= 5iTo solve this equation you simply type it in on your calculator and after pressing enter the (i) will appear(3+2i)(3-2i)= 13(3+2i)+(5-6i)= -5-12i

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Imaginary numbers