Question

Q 44/45 Let A = (x:x is a multiple of 7 and 50 <x<
60, X E N) then n(A) is​

Answer 1

Answer:

n(A) = 1

Step by step explanation :

Because,

Given is A = (x:x is a multiple of 7 and 50 < x<60,x belongs to N)

So x is 7× 8 = 56

There fore A = {56} and n(A) = 1.

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