Question Number 100976 by  M±th+et+s last updated on 29/Jun/20

find all possible values of x,y,z in terms  of a,b,c gor a triplet (x,y,z) that satisfy    x+(1/y)=a    y+(1/z)=b    z+(1/x)=c

Commented byjohn santu last updated on 29/Jun/20

⇒x = ((ay−1)/y) ∧ y = ((bz−1)/z)  ⇒ z+ (y/(ay−1)) = c ∧ y = ((bz−1)/z)  ⇒ z + (((bz−1)/z)/(a(((bz−1)/z))−1)) = c   z + ((bz−1)/(abz−a−z)) = c   z + ((bz−1)/(z(ab−1)−a)) = c   z(z(ab−1)−a)+bz−1 = c(z(ab−1)−a)  (ab−1)z^2 +(b−a)z−1=(abc−c)z−ac  (ab−1)z^2 +(b−a+c−abc)z+ac−1=0  z = ((abc+a−b−c ± (√((b−a+c−abc)^2 −4(ac−1)(ab−1))))/(2(ab−1)))