What is the frequency of the function f(x)? f(x)=14cos(2x)+5 express the answer in fraction form. enter your answer in the box?

F(x) = 14 cos(2x) + 5

Frequency is equal to 1/Time Period

So, first we need to find the Time Period of the given wave.

In order to find the time period, we set 2x equal to 2π and find the value of x. The value of x will be the time period of the wave.

So, 

2x = 2π
x=π

Thus, the period of wave is T.

f = 1/T
f = 1/π

Thus, the frequency of the given wave is 1/π