5. Classify each of the following as a function, a partial function, or not a function (If it's both a function and a partial function, choose "function"-the more exact classification.) and range a) t(1, a)j for domain space 1 space (a, b) b) f(x)-1/x when both domain and range space are the Real numbers (R) c) f(x) = sin(x) when domain space is the Natural numbers (N, the non-negative integers) and range space is R. d) f(x) = x2 when both domain and range space are R. (Recall that the square root of a positive number n is t n.) e) f(x, y) - max(x, y) for domain space R x R and range space R. f) f = {(-1, 1>, a), (, b), (, b)) for domain space 1, 2] x f1, 2] and range space (a, b) for domain space 1} x 11,2] and range space (a, b)