In Exercises 25 and 26, use the given information to find
Chapter 9, Problem 26(choose chapter or problem)
In Exercises 25 and 26, use the given information to find the cosine of each angle in ^ABC.a 17 cm, b 8 cm, c 15 cm (For this particular triangle,you can check your answers, because there is an alternativemethod of solution that does not require the lawof cosines.)
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