Show that
, is an increasing function of x throughout its domain.
Let y = 
Now, x > -1
⇒ 1 + x >0
Also, for all x> -1, 
for x > -1
Therefore, f is an increasing function throughout its domain.
7
Show that, is an increasing function of x throughout its domain.
Let y =
Now, x > -1
⇒ 1 + x >0
Also, for all x> -1,
for x > -1
Therefore, f is an increasing function throughout its domain.