if (1 2) (3 4)
Prove that (A^3)^9=A
Answers
Answered by
0
Answer:
Don't know like you hahaha...
Answered by
0
Answer:
A={1,2,3...9}
R in A×A
(a,b) R (c,d) if (a,b)(c,d) ∈ A∈A
a+b=b+c
Consider (a,b) R (a,b) (a,b)∈A×A
a+b=b+a
Hence, R is reflexive.
Consider (a,b) R (c,d) given by (a,b) (c,d) ∈ A×A
a+d=b+c=>c+b=d+a
⇒(c,d)R(a,b)
Hence R is symmetric.
Let (a,b) R (c,d) and (c,d) R (e,f)
(a,b),(c,d),(e,f),∈A×A
a+b=b+c and c+f=d+e
a+b=b+c
⇒a−c=b−d-- (1)
c+f=d+e-- (2)
Adding (1) and (2)
a−c+c+f=b−d+d+e
a+f=
Similar questions
Chemistry,
3 months ago
Physics,
3 months ago
Biology,
3 months ago
Social Sciences,
7 months ago
Environmental Sciences,
7 months ago
Math,
11 months ago
History,
11 months ago