Question

a+2b/a-2b=13/1 then find a/b and a2+b2/a2-b2​

Answer 1

Answer:

a/b = 7/3

Step-by-step explanation:

a+2b/a-2b=13/1

1(a+2b) = 13(a-2b)

a+2b = 13a - 26b

13a-a = 2b+26b

12a = 28b

a/b = 28/12

a/b = 7/3 (a=7, b=3)

a2+b2/a2-b2 = (7)2 + (3)2/ (7)2 -(3)2

                      = (49 + 9) / (49-9)

                      = 58/40