Step-by-step explanation:
the explanations are in the image
Step-by-step explanation:
check the pic
answer is 4
Hm, it seems like his answer is off. The image is what I got.
Answers are like this: 1)Cos C 2)Cos B 3)Cos A 4)a 5)b 6)c all of them are different type of writing cosines law , just this.