Question: Set up equations (do not solve) to solve the triangle in Fig. 9.73 by the law of cosines. Why is the law of sines easier

Set up equations (do not solve) to solve the triangle in Fig. 9.73 by the law of cosines. Why is the law of sines easier to use?

Fig. 9.73 A 10 30 a 20

Fig. 9.73 A 10 30 a 20

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