defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Sets Set Theory and types of Sets

If A = {a, b} then which of the following is the power set of A ?

1
{ϕ, {a}, {b}}
2
{ϕ, {a}, {b}, {a, b}}
3
{ϕ, {a}, {a, b}}
4
None of these
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