2: Cho A, B, C là các tập hợp. Chứng minh rằng (a) A∩ (B\C) = (A∩ B)\(A∩ C).
(b) A∪ (B\A) = A∪ B.
(c) A\(A\B) = A∩ B.
(d) (A\B)\C = (A\C)\(B\C).

for the first question it would be the second answer for the second question it would be the third answer and for the third question it would be the first answer

step-by-step explanation:

step-by-step explanation:

left be aligning the decimal points is required to not required see the number of digits to the right

in geometry, parallel lines are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel. by extension, a line and a plane, or two planes, in three-dimensional euclidean space that do not share a point are said to be parallel.

10 - 75

step-by-step explanation:

there's nothing attached so it's most likely anything in that range.