Answer:
0.6
Step-by-step explanation:
subtract 4.5 from 3.9
Fiecare poate fi împărțită cu 2 ca fiind cea mai mică.
<u>Answer:</u>
The correct answer option is B. 0.21.
<u>Step-by-step explanation:</u>
We are to find the value of
using the law of cosines.
We know that the formula of the cosine rule is given by:

So substituting the given values in the above formula:





cos C = 0.21