Question

If b is the mean proportional of
a and c; then (a - b)^3 : (b - c)^3
equals to​

Answer 1

Answer:

1  :  1

Step-by-step explanation:

∵ b is the mean proportional of a & c

∴   (b - a)  = (c - b)

or, -(a - b) = -(b - c)

or,  (a - b) =  (b - c)

∴ (a - b)³ : (b - c)³  

=  (b - c)³ : (b - c)³

=    1  :  1