Given:
A triangle ABC.
The given expression for b is:

To find:
The expression that is equivalent to b.
Solution:
According to the Law of Cosines,

It can be written as:
...(i)
We have,
...(ii)
On comparing (i) and (ii), we get




Therefore, the required values are
.
The answer is <span>36x^2 − 20x + 9
</span>
Answer: A. top 0 bottom 6 b. top 0 bottom 0
Step-by-step explanation:
The correct answer is actually 'B'. D does not name the ray because the way it is formatted, the line would go in the opposite direction it is facing currently and wouldn't be a ray. For D to be correct, it would have to be
--->
EC