Question

यदि X+1/Y=1 और Y+1/Z=1 तो Z+1/X का मान ज्ञात कीजिए​

Answer 1

if A= x +1 / x-1 then

A - 1/A =

x+1/x-1 - x-1 / x+1

(x+1)^2 - (x-1)^2 /x^2 -1

x^2 +2x +1 - x^2 +2x -1 /x^2-1

4x / x^2 -1