Answer:
or 
Step-by-step explanation:
By definition the function
has a domain of
.
Since the function is not defined for the values of x negative or equal to zero.
The range of this function is all the real numbers.
Since
when
and
when 
In this case we have the function 
Therefore since the log function is squared then its range is now 
We know that the law of sines states that:

For simplicity, let:

In triangle A1BC this leads to:

Therefore:

Now, triangle A2BC is isosceles which means that both the base angles are equal, since angle CA1B and A2A1B are supplementary we have:
The first option :
Multiply the first equation by 8 and the second equation by 2
would not result in the elimination of the variables in this system
28.3 / 9 = 3.14444444......
3.14 round to 3