Decide which of the following are equal sets and which are not ? Justify your answer.
A = { x|3x-1=2}
B = { x|x is a natural number but x is neither prime nor composite}
C = {x|x∈N,x<2}
Answers
Answered by
122
Given,
A = { x | 3x - 1 = 2 } = 1
B = { x | x is a Natural number but x is neither prime nor composite }
= 1
C = { x | x ∈ |N, x < 2 } = 1
So, we see that all the sets are equal.
#
Answered by
106
Answer:
all below sets are equal
A = { x|3x-1=2}
B = { x|x is a natural number but x is neither prime nor composite}
C = {x|x∈N,x<2}
Step-by-step explanation:
A = { x|3x-1=2}
=> 3x - 1 = 2
=> 3x = 3
=> x = 1
A = {1}
B = { x|x is a natural number but x is neither prime nor composite}
x = Natural number = 1 ,2 ,3 ....
but 1 is the only number which is neither prime nor composite
B = {1}
C = {x|x∈N,x<2}
xx∈N so x = 1 , 2 , 3 ,...
but x < 2
so x = 1
C = {1}
A = {1} , B = {1} , C = {1}
=> A = B = C = {1}
all sets are equal
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