Final answer:
The temperature will be 17°C in the months represented by x = pi/6 + 12pi*n and x = 5pi/6 + 12pi*n.
Step-by-step explanation:
The equation f(x) = 5sin(x/12) + 14.5 represents the long-term average temperature at the Willburn airport. To find the months when the temperature is 17°C, we need to solve for x when f(x) = 17.
Substituting 17 for f(x), we have 17 = 5sin(x/12) + 14.5. Subtracting 14.5 from both sides gives 2.5 = 5sin(x/12). Dividing by 5 gives sin(x/12) = 0.5.
To find the values of x, we can use the sine inverse function. We know that sin(pi/6) = 0.5, so x/12 = pi/6 + 2pi*n, where n is an integer. Solving for x, we have x = pi/6 + 12pi*n and x = 5pi/6 + 12pi*n. Therefore, the temperature will be 17°C in the months represented by x = pi/6 + 12pi*n and x = 5pi/6 + 12pi*n.