HELLO FRIENDS WELCOME BACK TO TECH 4 YOU WEBSITE
TODAY WE ARE DISCUSSING ABOUT PLUS ONE MATHEMATICS CHAPTER 2 IMPORTANT QUESTIONS
SO LETS START
FOLLOW EACH ONE
QUESTIONS
1. LET X ={12345}AND Y ={13579} WHICH OF THE FOLLOWING IS / ARE RELATIONS FROM X TO Y
options here
(a) R1 =1(x,y)y=2+x,x (-X,y(-Y}
(b) R2 ={(1,1) , (2,1 ) , (3,3) , (4,3) , (5,5) }
(c) R3 = { (1,1) ,(1.3 ) ,( 3,5 ) (3,7 ) , (5,7 ) }
(d) R4 = 1(1,3) , (2,5 ) , (2,4 ) , (7,9 )
2. With reference to a universal set ,the inclusion of a subset in another ,is relation,which is
(a) symmetric only
(b) equivalence relation
(c) reflexive only
(d) non of these
3. The relation R is defined on the set of natural numbers as {(a,b) :a= b}.
_ 1
Then R is given by
(a) {(2,1) ,(4,2) , (6,3)...}
(b) {(1,2) , (2,4 ) ,( 3,6 )...}
_1
(c) R is not defined
(d) non of these
4. The relation R defined on the set of natural numbers as {( a,b) : a differs from b by 3} , is given by
(a) { (1,4, (2,5 ) , (3,6 ) ...}
(b) {(4,1) , (5,2 ) , (6,3 )...}
(c) { ( 1,3) , (2,6 ) , (3,9 ),...}
(d) Non of these
5. Given two finite sets A and B such that n(A) =2,n(B)=3.Then total number of relation from A to B is
(a) 4
(b) 8
(c) 64
(d) Non of these
6. Let A = {1,2,3 }. The total number of distinct relation that can be defined over A is
9
(a) 2
(b) 6
(c) 8
(d) Non of these
8. Let A ={1,2,3,} , B= {1,3,5}.A relation R:A - B is
_1
defined by R ={(1,30 ,(1,5 ) ,(2,1 ) } Then R Is Defined by
(a) {(1,2),(3,1) ,( 1,3 ), (1,5 )}
(b) {(1,2), (3,1), (2,1)}
(c) {(1,2), (5,1),(3,1)}
(d) Non of these
9. A relation from P to Q is
(a) A universal set of P *Q
(b) P*Q
(c) An equivalent set of P * Q
(d) A Subset of P*Q
8. Let A ={1,2,3,} , B= {1,3,5}.A relation R:A - B is
_1
defined by R ={(1,30 ,(1,5 ) ,(2,1 ) } Then R Is Defined by
(a) {(1,2),(3,1) ,( 1,3 ), (1,5 )}
(b) {(1,2), (3,1), (2,1)}
(c) {(1,2), (5,1),(3,1)}
(d) Non of these
9. A relation from P to Q is
(a) A universal set of P *Q
(b) P*Q
(c) An equivalent set of P * Q
(d) A Subset of P*Q
10. product of two odd functions is
(a) even function
(b) odd function
(c)Neither even nor odd
(d) cannot be determined
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