What is the range of f(x)=4cos(x)−1f(x) = 4\cos(x) - 1f(x)=4cos(x)−1?
[−1,1][-1, 1][−1,1]
[−5,3][-5, 3][−5,3]
[−4,4][-4, 4][−4,4]
[−3,5][-3, 5][−3,5]