By evaluating in x = π/3, we conclude that the correct option is C.
<h3>Which is the graphed function?</h3>
By looking at the graph, we can see that the function becomes zero when:
x = π/3
Now, this is really trivial.
Just evaluate the four options in x = π/3, and see which ones become equal to zero, and discard the others.
By doing that, you will see that the only option that becomes zero when evaluated in x = π/3 is option C.
Then we conclude that it is the only option that can be the correct one.
If you want to learn more about trigonometric functions:
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