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Let A={phi,{phi},1,{1,phi},2}dot Which o...

Let `A={phi,{phi},1,{1,phi},2}dot` Which of the following are true? `phi A` ii. `2subA` iii. `{2,{1}}subA`

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i) `phi` belongs to set `A`, Thus, true,
ii) False
`2` is not a subset of et `A`, it is an element of set `A`.
iii)True
`{2, {1}}` is not a subset of set `A`.
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