Cho tập hợp X={-3;-2;0;1;2}. Trên X xác định quan hệ S như sau: (a;b) ∈ ↔ a2- b2= a-b,∀a;b∈X
Chứng minh rằng S có tính chất đối xứng

. + λrh() e 1 1 2 4 4 4 4 4 3 4 4 4 4 4 + th−1(− s(x)2 dx ω + λrh−1() e 2 1 2 4 4

step-by-step explanation:

they can both be solutions depends on the equation

step-by-step explanation:

what is the equation? ?

answer:  

step-by-step explanation:

odd numbers are only divisible by 1 and itself.

even numbers are divisible by more than 1 and itself.

for example 6 is even because it is divisible by more than 1 and its self. 1 x 6= 6 ; 2 x 3= 6

and 7 is odd because only 7 x 1 equals seveb