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Law Of Cosines Resources

Lessons

The Law of Cosines Written by tutor Jeffery D. In this article we will prove the Law of Cosines and explain how it can be used to determine side lengths and angles of triangles in two particular cases. The Law of Cosines can be used to "solve" triangles in two particular situations. Recall that to "solve" triangles means to determine unknown side lengths or angle... read more

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