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Let A={a , b ,{c , d},\ e} . Which of th...

Let `A={a , b ,{c , d},\ e}` . Which of the following statements are false and why?
(i)`{c , d}subA`
`(ii){c , d} in A`
(iii)`{{c , d}}subA`

Text Solution

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i) False `{c, d}` is not a subset of `A` but it belongs to `A`.
Hence, `{c, d} in A`
ii)True
Thus, `{c, d} in A`
iii) True
Since, `{c, d}` is a subset of `A`.
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