What is the domain of f(x) = cos(x)?
2 answers:
Option D: The set of all real numbers
Explanation:
Given that the function
We need to determine the domain of the function.
The domain of the function is the set of all input values for which the function is real and well defined.
In other words, the domain of the function is the set of all independent x - values of the function.
Thus, the function cos (x) is real and well defined in the interval
Hence, the function cos (x) is real and well defined for all real numbers.
Therefore, the domain of the function is the set of all real numbers.
Hence, Option D is the correct answer.
You might be interested in
Answer:
No does not contain the same length
Step-by-step explanation:
Given that
A(-4,2) , B (1,4), C (2, -1)
Now
AB would be
=
And, BC is
As we can see that the AB and BC are not equaled
So,
AB ≠ BC
Due to the different length
Therefore they do not contains the same length
We simply applied the distance formula due to which the length could be determined and the same is to be considered
