DOUBT

[ritesh joon]

I have problem on AQ-1.7, Q-1 and Q-2.

please tell me the solutions of these 2 questions.

ThankYou

[Bhupendra Singh]

Q1. Let cardinality of A and B be a and b respectively.

So as per question 2^a - 2^b = 1

This will only be true when a =1 and b =0.

Thus, second and third option are true.

Q2. Since N and Z are infinite sets, so both option 1 and 2 are correct.

Intersection of N and z will be N

Union of N and Z will be Z.

I hope, I am able to clear your doubt. All the best.

[Patil Sai Vaishnavi]

Can a powerset has cardinality equal to zero

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[Jai Hanani]

No, it can't.