The Maths Prof: The Cosine Rule

Описание к видео The Maths Prof: The Cosine Rule

In this lesson I show you how to use The Cosine Rule to find the LENGTH of a side in a triangle and then, an ANGLE.

If you want to skip ahead to finding an ANGLE go to 5:15

Another lesson to follow soon with some more difficult examples!

I hope you find the lesson useful! Subscribe to my YouTube channel to stay up to date with new uploads and follow me on Instagram @themathsprof for more maths! :-)

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