Friday, December 12, 2014

Law of Sines/Cosines

The law of sines and cosines are for me were surprisingly difficult to understand at first since I wasn't there for the teaching. However, once I went over the lecture online it was fairly simple. Law of sines is really just cross multiplying. The formula goes like this, (shown in image). You'd then plug in the degrees of the angle into the Sin A/B/C spot and then place that over the length to it's corresponding side. Law of cosines goes like this (shown in second image). This one is a bit more difficult hence the unsatisfied face at the bottom. But it literally is just plugging in the angle lengths and side lengths and then ultimately fulfilling he algebra. It looks difficult but really, it's not.

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