Question: SAM-EX3Please I need help for Question 7 and 8 (n) AO (6) Let A, B. C be sets. Prove that (A - C) - BCA

SAM-EX3Please I need help for Question 7 and 8

(n) AO (6) Let A, B. C be sets. Prove that (A - C) - BCA - B. (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): f : R - Z, f (x) = x+5 (8) Consider the following function The function that assigns to each positive integer, a bit-string of those number of 1s. (a) Is the function f one-to-one ? (b) Is the function f onto ? (c) What is the domain of f? (d) What is the range of f? (9) Evaluate the following

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