Today we both reviewed material from last week and covered a bit of new material. The stuff we reviewed was converting complex numbers to trig form (which can be done by drawing a triangle to find the r and theta). Next we learned about multiplying and dividing complex numbers in trig form: we use certain formulas (which are found boxed at the bottom of the first notes page and on the second page) and plug in the respective Rs and thetas. We found that when multiplying, the Rs multiply and the thetas add, and when dividing, the Rs divide and the thetas subtract. We also covered complex numbers to a power where we saw that Demoirvre's Theorem could be used.
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