Question

1. a:b = c:d হলে, দেখাই যে,
(i) (a²+b²):(a²-b²) = (ac+bd): (ac-bd)​

Answer 1

Answer:

a/b=c/d=k(let)

a=bk,c=dk

LHS=(a^2+b^2)/(a^2-b^2)