x+1/y = y+1/z = z+1/w = w+1/x = t(hk)

x+1/y=y+1/z=z+1/w=w+1/x =t(香港)

Let x,y,z,w be different positive real numbers such that x+1/y = y+1/z = z+1/w = w+1/x = t. Find the value of t.

原連結

---