Actually, let me just do it this way. If we just straight up evaluate the limit of the numerator and denominator, what are we going to get? We're going to get 2 cosine of 0, which is 2, minus 2 times cosine of, well, this 2 times 0 is still going to be 0. So minus 2 times cosine of 0, which is 2. All of that over 1 minus the cosine of 0, which is 1. So once again, we get 0 over 0. So does this mean that the limit doesn't exist?