Which equation correctly applies the law of cosines to solve
for an unknown angle measure?
72 = 82 + 112 – 2/8)(11) cos(N)
82 = 72 = 11-27(11) cos(M)
72 = 32 + 112-28) (11)cos(P)
82 = 72 + 112 -217 (11) cos(P)​