Question

Let
X
[1,2,3,4,5.6
J 4
{
xe { }
کے
} and
{1,623.4} {2,3,4} {15 ob}
{5.). {2,3,4,5 ats} } Let A {1,2,3}
B. { 1, 3, 4 } {Sabad} and
D {1,2,4,5} find the
С C
interiors
closures
boundaries
exteriors
and
the
derived
sets
of A, B.C.D
Salo:​

Answer 1

ANSWER

R1={(x,y):y=2+x,x∈X,y∈Y}

x=1→y=1+2=3

x=2→y=2+2=4

x=3→y=3+2=5

x=4→y=4+2=6

x=5→y=5+2=7

R={(1,3),(2,4),(3,5),(4,6),(5,7)}

Here in(4,6) ,6 does not belong to either XorY

So R1 is not a relation between X and Y 

In R4, since it contains an element (7,9) which relates set Y to set Y, while rest elements relate set X to Y.

∴R4 is not a relation between X and Y 

Answer 2

Answer:

12345

I don't know process

Pl ease make me as brainleist