(x+y,1) = (5, x-y), then x=
6
3
2
4
If A= {1,2,3}, then the number of elements in A x A=
9
8
Which of the following is a function?
{(1,2), (2,3), (2,4)}
{(1,2), (2,2), (3,2)}
{(1,4), (1,5), (1,6)}
{(2,3), (3,2), (2,4)}
R= {(1,a), (2,b), (3,c)}. Domain of R=
{a,b,c}
{1,a,2,b,3,c}
{1,2,3,a}
{1,2,3}
A, B are two non -empty sets. If A x B = B x A
A = B
A ≠ B
Example for an ordered pair
{2,3}
{(2,3)}
(2,3)
(2)
Which of the following relation is an equivalence relation?
Every triangle is congruent to itself
'<' relation in natural numbers
in a set of lines in a plane
R= {(a,a2), (b,b2), (c, c2)}. Range of R=
{a2,b,c2}
{a3,b3,c3}
{a2,b2,c2}
If (x, -3) = (-4,y) then the values of x and y are
x = -3; y = -4
x = -4; y = -3
x = 3; y = 4
x = -4; y = 3
A x ( B U C ) =
( A x B ) U C
( A x B ) ∩ C
( A x B ) U ( A x C )
( A x B ) ∩ ( A x C )
