Q.3 Let A = { 1, 2, { 3, 4 }, 5 }. Which of the following statements are incorrect and why?
(vii) {1,2,5} A
Here,{1,2,5} is not an element of { 1, 2, { 3, 4 }, 5 }.
So,{1,2,5} A .
Hence, statement is incorrect.
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