Question

A={x;x≠x} then n(A) = ________

Answer 1

Answer:pie(null)

Step-by-step explanation: because X is not equal to X then no. Of elements is null

Answer 2

Given :   A={x;x≠x}  

To find : n(A)

Solution:

A={x;x≠x}

For every value of x   , x  = x

hence  no value of x exist where x ≠ x

there are not any such values

Hence  A  = { }  or  Ф  

n(A) is the number of elements in set A

Hence n(A)  = 0  

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