Question

If A = {1, 2, 3}; B = {a, b, c} then find n(A) and n(B).

Answer 1

$\bold{Answer :}$

Let, any set of X. Then n (X) is the number of distinct elements present in the set.

Here, A = {1, 2, 3}

So, n (A) = 3

Also, B = {a, b, c}

Thus, n (B) = 3

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Answer 2

n(any set) = no. of terms in the set.

A = {1,2,3}
B = {a,b,c}

So, n(A)=3; n(B)=3