A) \( \Large \frac{1}{a^{1+log_{a}z}} \) |
B) \( \Large \frac{1}{a^{z+log_{a}z}} \) |
C) \( \Large \frac{1}{a^{1-log_{a}z}} \) |
D) none of these |
C) \( \Large \frac{1}{a^{1-log_{a}z}} \) |
From the given relation, we have
\( \Large a = y^{1-log ax} = z^{1-log ay} \)
\( \Large \therefore\ log_{a}a = \left(1-log_{a}x\right)log_{a}y \)
\( \Large and\ log_{a}a = \left(1-log_{a}y\right)log_{a}z \)
=> \( \Large log_{a}y \left(1-log_{a}x\right) = 1 \)
\( \Large and\ log_{a}z \left(1-log_{a}y\right) = 1 \)
=> \( \Large log_{a}y = \frac{1}{1-log_{a}x} \)
\( \Large and\ log_{a}z = \frac{1}{1-log_{a}y} \)
\( \Large \therefore log_{a}z = \frac{1}{1-log_{a}y} = \frac{1}{1-\frac{1}{1-log_{a}x}}\)
= \( \Large \frac{1-log_{a}x}{-log_{a}x} \)
\( \Large Now \frac{1}{1-log_{a}z} = \frac{1}{1 + \frac{1-log_{a}x}{logt_{a}x}}= log_{a}x \)
\( \Large log_{a}x = \frac{1}{1 - log_{a}z} \)
\( \Large x = a \frac{1}{1-log_{a}z} \)