Find x and y if ( 2x
, x+y)=(6,2)
a) x=3 , y = -1
b) x = - 1 , x = 3
c) x=3 , y = 1
d) x= - 3 , y = -1
Solution:(2x , x+y)= (6,2)
2x = 6 ………(i)
x+y= 2………(ii)
x=6/2=3 put
x=3 in (ii)
3+y =2 y=2-3 y= - 1
The Cartesian product of A and B is denoted as
a) A/B
b) A ×B
c) A-B
d) A+B
The product of A and B denoted as A× B is the set of all ordered pair (a , b) where a is in A and b is in B.
a) ordered product
b) Cartesian product
c) both a and b
d) none of these
Let A and B be sets .A binary relation R from A to B is a subset of
a) A/B
b) A ×B
c) A-B
d) A+B
