Given any triangle ABC with corresponding side lengths a, b, and c, the law of cosines states:
B
С
a
A
b
с
O A. 6 = a2 +c- Zac cos(B)
B. 67 = 22 - C2 - 2bccos(C)
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The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.

Ugh h h t t u i i vick u

What mathematical statement is missing ? ? the answer is b

Do you have answer choices?