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- How to solve this problem- - Sets, Relations and Functions - JEE Main-4
- #All India Pre Medical Test
- #Joint Entrance Examination Main
- #Sets, Relations and Functions
- #Engineering
- #Maths
If aN={ax:xN} and bN
cN=dN where b,c
N are relatively prime,then
- Option 1)
d=bc
- Option 2)
c=bd
- Option 3)
b=cd
- Option 4)
none
Answers (1)
As we learnt
INTERSECTION OF SETS -
The intersection of sets A and B is the set of all elements which are common to both A and B. The symbol ‘∩ ‘is used to denote the intersection.
- wherein
Symbolically, we write A ∩ B = {x: x ∈ A and x ∈ B}.
bN= set of positive integral multiples of b,
cN= the set of positive integral multiples of c.
= the set of positive integral multiples of bc. Thus d=bc
Option 1)
d=bc
Option 2)
c=bd
Option 3)
b=cd
Option 4)
none
View full answer
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