Question

if (a+b)/(a-b)=2 then find (a×a -ab+b×b)/(a×a+ab+b×b)

Answer 1

from 1st part we get that a = 3b on solving.

so

replace a and add 3b in the right part and solving

we get

7xbxb
___________
13 x b x b 

therfore ans is 7/13


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