Question

n(A) = 3 n(P(A)) = 8 =23,....
om these examples we conclude that if n(A)=m, then the number of
sets of A or n(P(A) is 2".
Exercise 1.1
both Tabular and Set Builder forms to specify the following sets :
The set of positive integers greater than 2 and less than 6.
The set of positive integers less than 20 that are divisible by 5.
The set of natural numbers between 4 and 12.
A set of first six positive prime numbers.
of the following sets are the Null Set ?
|x is a letter before 'a' in the English alphabet).
|x + 5 = 5}
|x is less than 7 and greater than 8}​

Answer 1

Answer:

n(A) = 3 n(P(A)) = 8 =23,....

om these examples we conclude that if n(A)=m, then the number of

sets of A or n(P(A) is 2".

Exercise 1.1

both Tabular and Set Builder forms to specify the following sets :

The set of positive integers greater than 2 and less than 6.

The set of positive integers less than 20 that are divisible by 5.

The set of natural numbers between 4 and 12.

A set of first six positive prime numbers.

of the following sets are the Null Set ?

|x is a letter before 'a' in the English alphabet).

|x + 5 = 5}

|x is less than 7 and greater than 8}

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