If X and Y are any two non-empty sets, then what is (X-Y)' equal to?

If X and Y are two non-empty sets, then what is (X - Y)' equal to

If A and B are any two non-empty subsets of a set E, then what is A uu (A nnB) equal to ?

If A and B are two non-empty sets, then (B-A) nn (A uuB)' is equal to

If A and B are two non-empty sets, then (B-A) nn (A uuB)' is equal to

If X and Y are any two sets, then: Xcap(XcupY)=

If A and B are two non-empty sets, then (A-B)cup(B-A) is equal to:

If A and B are disjoint non-empty sets, then A-(A-B) equals :

If X and Y are two non-empty sets where f:X rarr Y ,is function is defined such that f(c)={f(x):x in C} for C sube X and f^(-1)(D)={x:f(x)in D} for D sube Y ,for any A sube Y and B sube Y, then

If X and Y are two non-empty sets where f: X->Y ,is function is defined such that f(c) = {f (x): x in C} for C sube X and f^-1 (D) = {x: f(x) in D} for D sube Y ,for any A sube Y and B sube Y , then