Mathematics questions
18011 published questions with worked solutions.
- If A= x,y,z , then the relation R= (x,x),(y,y),(z,z),(z,x),(z,y) is
- If R= (a,b):a+b=4 is a relation on N, then R is
- Let R be a relation on a set A such that R=R^ -1 . Then, R is
- If a set A has 13 elements and R is a reflexive relation on A with n elements, then
- If A= a,b,c,l,m,n , then the maximum number of elements in any relation on A is
- If A is a non-empty set, then which of the following is false? p: There is at least one reflexive relation on A q: There is at...
- Let X be the set of all engineering colleges in a state of the Indian Republic and R be a relation on X defined as: two colleges...
- Let R be a relation from a set A to a set B, then
- Let X be a family of sets and R be a relation on X defined by 'A is disjoint from B'. Then, R is
- Let L be the set of all straight lines in the Euclidean plane. Two lines l_1 and l_2 are said to be related by the relation R iff...
- Let R and S be two equivalence relations on a set A. Then,
- A relation between two persons is defined as follows: aRb a and b were born in different months. Then, R is
- Two points P and Q in a plane are related if OP=OQ, where O is a fixed point. This relation is
- If R A B and S B C are relations, then (S R)^ -1 =
- If A= 4,6,10,12 and R is a relation defined on A as "two elements are related iff they have exactly one common factor other than...
- The relation R= (1,3),(3,5) is defined on the set 1,3,5 . The minimum number of ordered pairs to be added to R so that R becomes...
- Given the relation R= (1,2),(2,3) on the set A= 1,2,3 , the minimum number of ordered pairs which when added to R make it an...
- Let R be a reflexive relation on a set A and I be the identity relation on A. Then,
- Let L denote the set of all straight lines in a plane. Let a relation R be defined by R , , L. Then R is
- On the set of human beings a relation R is defined as follows: "aRb iff a and b have the same father". Then R is