Question: Xe 3Please #7 ASAP! (6) Let A, B, C be sets. Prove that (A - C) n (C - B) = 4. (7) Answer the

Xe 3Please #7 ASAP!

(6) Let A, B, C be sets. Prove that (A - C) n (C - B) = 4. (7) Answer the following (a) Define function (b) Define one-to-one function (c) Define onto function. (d) Determine whether f is a function (explain your determination): x - 2 f : R - R, f(I) = 7 + 5 8) Consider the following function

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