BitaviesFor a continueus function on a ciosed, bounded interval, the onity ctilical mimbieti and the embpoinil, thul, we simply eyaluate the hmetion at each endpoint and each critical rumber if the Absolute masimbin) and whichis smallest (the abolute minimam)3.3.4 ExercisesBated on the given information about each function, decide Whether the function has global maximum, a global minimum, neither, both, of that if is not possible to say without more information. Assume that each function is twice differentiable and defined for all real numbers, unless noted otherwise, in each case, write one sentence to explain your conclusion.a.f is a function such that f''(x)<0 for every a.b.,j is a function with two critical numbers a and b(where