Answer:
A numerical value of one trigonometric function of x, for the given function would be 
Step-by-step explanation:
We know that there are many trigonometric functions, <em>that can be expressed as functions of x</em>, for example:





So, the problem is aking us for one trigonometric function of x, <u>but gives us a product of functions of x</u>, instead of one function of x. We note then, that

Therefore, we calculate from the given function

wich is our answer, furthermore, <em>we could calculate the value of x for this case</em>
