Question

yadi (x+y):(x-y)=7:3 then find the value of (x^2+y^2):(x^2-y^2)??​

Answer 1

Answer:

hello dear,

we have

x+y = 7k .... (1) & x-y = 3k ..... (2)

Adding 1 and 2 we get :-

x = 5k

putting x = 5k in (1) we get:-

y= 2k

so now,

(x^2+y^2):(x^2-y^2)= (25k^2+4k^2):(25k^2-4k^2)= 29:21 ans.

hope it will help u dear!!