Which equation correctly applies the law of cosines to solve for an unknown angle measure?

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03-05-2017
Mathematics

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Which equation correctly applies the law of cosines to solve for an unknown angle measure?

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scme1702 scme1702 · Answer 1 · 2017-05-09T17:25:44+02:00

scme1702 scme1702

09-05-2017

The law of cosines is:
c² = a² + b² - 2abCos(C)
Therefore, in order to apply this law, we must know the value of two adjacent sides, represented by a and b here, and the value of their subtended angle, represented by C.

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