Question: 4. With notation as in the previous question, show the following generalization of the Pythagorean theorem: c2 = a2+ 62 - 2ab cos C

4. With notation as in the previous question, show the following

4. With notation as in the previous question, show the following generalization of the Pythagorean theorem: c2 = a2+ 62 - 2ab cos C

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