The answer would be 5 I think
Solution
Given the function below

Where


Also recall that the contangent formula is

Thus;

From the above deduction,
sinθ is the denominator,
Hence, the domain of validity is defined for the set of real numbers except for sinθ = 0
The answer is C (EF and HI)
This is because both lines pass through the centre A, meaning both are diameters. Hence, they are equal in length.
i think its the second graph
hope i helped
Answer:
dam i would help u but i cant see that sorry :(
Step-by-step explanation: