How would these be coded into python/jupyter?

4. Given f(x) = _1-tan(x) + /4 +/4- b) sin(x) cos(x)" a) Graph f(x) on the interval [0, 1]. Use the graph to estimate lim f(x). b) Use list comprehension to evaluate the function at x = 0.78, 0.785, 0.7853, then at x = 0.79, 0.786, 0.7854 to numerically estimate lim f(x) and lim f(x). 27/4+ c) Find the exact limit. d) To see how to evaluate the limit algebraically, substitute - cos(x ) in f, then simplify the result (print both). sin(x) for tan(2)