Question

If a b is 1 2 then a b a b is what the value of (a+b)/(a-b)

Answer 1

Answer:

If a=1 and b=2 ,the value of a+b/a-b is following:-

Step-by-step explanation:

(1+2)/(1-2)= 3/-1= -3

Answer 2

Answer:

( -3

Step-by-step explanation:

(a+b)/(a-b)

(1+2)/(1-2)

3/-1

-3