I'm Drunk

To make it clearer, the square root of negative one is imaginary and represented mathematically by i. When coupled with a real number you then have a complex number of the form a + bi. Calculations can then be done and equations can then be solved. This is used quite a bit in the electrical field with AC circuits and such. There are plenty of other uses but you'd better be able to explain some if your gonna teach it. :)
 
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