Which equation correctly applies the law of cosines to solve for an unknown angle measure?
A
8 squared is equal to 7 squared plus 11 squared minus 2 7 11 cosine cap pB
8 squared is equal to 7 squared plus 11 squared minus 2 7 11 cosine cap mC
7 squared is equal to 8 squared plus 11 squared minus 2 8 11 cosine cap pD
7 squared is equal to 8 squared plus 11 squared minus 2 8 11 cosine cap n