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Mathematics - Sets and Relations Question with Solution | TestHub

MathematicsSets and RelationsQuestions on number of relations and setsHard2 minPYQ_2021
MathematicsHardsingle choice

Let Z be the set of all integers,
A=(x,y)Z×Z:(x2)2+y24

B=(x,y)Z×Z:x2+y24 and 

C=(x,y)Z×Z:(x2)2+(y2)24
If the total number of relations from AB to AC is 2p, then the value of p is:

Question diagram: Let Z be the set of all integers, A = ( x , y ) ∈ Z × Z : (

Options:

Answer:
A
Solution:

A=(x,y)Z×Z;(x2)2+y24

B=(x,y)Z×Z;x2+y24

C=(x,y)Z×Z;(x2)2+(y2)24

Here, we can see from the above diagram AB={(0,0),(1,0),(2,0),(1,1),(1,-1)}n(AB)=5

Similarly n(AC)=5

Relation from AB to AC=25×5=2p

p=25

Stream:JEESubject:MathematicsTopic:Sets and RelationsSubtopic:Questions on number of relations and sets
2mℹ️ Source: PYQ_2021

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