Question

solve
$if {a}^{x} = {b}^{y } = {c}^{z}and \frac{b}{a} = \frac{c}{b} then \frac{2z}{{x + z}}$

Answer 1

Solution is in the attachment........

Answer 2

Hello friend,


Your explanation is in the pic.
The answer is 1.

Continuing from pic:

Mark x = z as equation (3)
As y/x = 1 => x = y. 
Mark x = y as equation (4)

From (3) & (4):
x = y = z
Therefore a = b = c = k. 



Hope my answer helps you.