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Which of the following is singleton set ...

Which of the following is singleton set ?
(i) A = {x : x is a letter in English alphabet, comes after Z}
(ii) `B = {0}`
(iii) `C= {x :x + 4=4}`
(iv) `D={x:x^(2)-4x+4=0}`
(v) `E={x:x in N,6ltxlt9}`.

Text Solution

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The correct Answer is:
(ii),(iii),(iv) are singleton sets
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