sandyyknguyen2818 sandyyknguyen2818 30-04-2024 Mathematics Answered Consider the function f(x) = x - 2k [(x + k)/(2k)], k = 1, 2, 3, and π, where [.] is the floor function. Show that f is 2k - periodic function and f(x) = x for all x ∊ (-k, k).