Q. If $lo g_{1/5} (2 x - 4) < lo g_{1/5} (x + 3)$ then

228 155 Continuity and Differentiability Report Error

A

$x < 7$

B

$2 < x < 7$

C

$x > 7$

D

none

Solution:

$lo g_{1/5} (2 x - 4) < lo g_{1/5} (x + 3)$
$2 x - 4 > x + 3 \Rightarrow x > 7$