Please solve the following 3 questions its urgent please.?

Question

Q1 If A= list the elements of the following subsets of A.

1) {Number divisible by 6}
2) {Number divisible by 7}
3) {Number divisible by 4}

Q2 The universal set E is the set of all triangles. Given that
A = {isosceles triangles}
B = {equilateral triangles}
C= {obtuse – angled triangles}

Q3 Using the set identities prove that the distributivity of union over intersection
i.e. A U (B ∩ C) = (A U B) ∩ (A U C)

Answer 1

Sorry, your questions are all incomplete!
Q1: What is A?
Q2: What do you want to do with A, B and C?
Q3: Which set identities are we to use?

Answer 2

your question is incomplete.
clear your question more.