Question

Pls answer 2,3 questions

Answer 1

$number \: of \: subset = {2}^{3} = 8$

Answer 2

2). ( ),(-1),(0),(1),(-1,0),(0,1),(-1,1),(-1,0,1). there are 8 subsets , ie 2^n(A).=2^3=8.

3) ( ),(p) ,(q) ,(p,q). there are 4 subsets ,ie 2^n(B).=2^2=4