If `log_a x, log_b x, log_c x` are in A.P then `c^2=`

If x is a positive real number different from 1 such that log_a x, log_b x, log_c x are in A.P then

. If 1, log_y x, log_z y, -15 log_x z are in AP, then

If "log"_(ax)x, "log"_(bx) x, "log"_(cx)x are in H.P., where a, b, c, x belong to (1, oo) , then a, b, c are in

If 1, log_(y)x, log_(z)y,-15 log_(x)z are in A.P. then the correct statement is :

There distinct positive numbers, a,b,c are in G.P. while log _(c) a, log _(b) c, log _(a) b are in A.P. with non-zero common difference d, then 2d=

If a, b, c are distinct positive real numbers in G.P and log_ca, log_bc, log_ab are in A.P, then find the common difference of this A.P

If a, b, c are in G.P, then log_a x, log_b x, log_c x are in

If a, b, c are in G.P, then log_a x, log_b x, log_c x are in

Q. If log_x a, a^(x/2) and log_b x are in G.P. then x is equal to (1) log_a(log_b a) (2) log_a(log_e a)+log_a log_b b (3) -log_a(log_a b) (4) none of these

If log_(x)a, a^(x//2), log_(b)x are in G.P. then x is equal to