Muddiest Point

The trickiest thing that I have come across in Pre Calculus Trig is probably applying the different trigonometric functions to everyday examples such as finding the distance between 2 cities or seeing how far a clock moves. I end up checking the key and walling myself through the problem and then see that it was really obvious and feel kind of dumb about. I'm getting the hang of out though and should be good for the test :)