EASY
11th ICSE
IMPORTANT
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If A×B=(p,q), (p,r), (m,q), (m,r), then B=

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Important Questions on Relations and Functions

MEDIUM
11th ICSE
IMPORTANT
If A,B,C be any three sets, then A×(BC)
EASY
11th ICSE
IMPORTANT

If A={1,2,3} and B={4,5,6,7} then n(A×B)=

EASY
11th ICSE
IMPORTANT
If R is a relation on the set A={1,2,3,4} defined by R={(x,y):y=x+1,x, yA}, then R is 
EASY
11th ICSE
IMPORTANT
A relation R on the set of integers Z is defined by R={(x,y): x,yZ, x2+y2=4}. Then R is 
EASY
11th ICSE
IMPORTANT
Let R be the relation on Z defined by R={(a,b):a,bZ, a-b is an integer}. Then Range of R is 
MEDIUM
11th ICSE
IMPORTANT
If R be a relation defined by x+2y=8 and x,yN, then the range of R is 
MEDIUM
11th ICSE
IMPORTANT
If R is a relation from {7,8,9} to {5,6,7} defined by y=x-2 then R-1 is