Question

2. Let: A = {x : x is a letter in the word 'INCREASE"}
B = {x : x is a vowel in the word 'INCREASE")
and C = {x : x is a consonant in the word 'INCREASE
(i) Write A, B and C is Roster form.
(ii) Find n(A), n(B) and n(C).
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Answer 1

Answer:

A={I,N,C,R,E,A,S}

B ={I,E,A}

C={N,C,R,S}

Step-by-step explanation:

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Answer 2

A={I,N,C,R,E,A,S} , B ={I,E,A} , C={N,C,R,S}

n(A) = 7 , n(B) = 3 , n(C) = 4

Given:

A = {x : x is a letter in the word 'INCREASE"}

B = {x : x is a vowel in the word 'INCREASE")

C = {x : x is a consonant in the word 'INCREASE

To Find:

(i) Write A, B and C is Roster form.

(ii)  n(A), n(B) and n(C).

Solution:

Roster form : This is a set that lists all  the elements of the set, separated by commas, within brackets.

A={I,N,C,R,E,A,S}

n(A) = 7

B ={I,E,A}

n(B) = 3

C={N,C,R,S}

n(C) = 4

A={I,N,C,R,E,A,S} , B ={I,E,A} , C={N,C,R,S}

n(A) = 7 , n(B) = 3 , n(C) = 4