Question

1)Write A= {1, 4, 9, 16, 25} in set - builder form.

2)List all the subsets of the following set B = {p, q}.

3)Give one example each for a finite set and an infinite set.
Tf A​

Answer 1

Answer:

1) A={y:y is a perfect square number of 1 to 5}

2) Given, B={p,q}

Subsets of B containing 0 element =ϕ

Subsets of B containing 1 element ={p},{q}

Subsets of B containing 2 elements ={p,q}

Therefore, Subsets of B are {ϕ,{p},{q},{p,q}}

3) A={1,2,3,4,----}__infinite set

B={1,2,3,4,5}____finite set