How many days are in an a decade
1 answer:
You might be interested in
4. By the fundamental theorem of calculus,
is increasing on those intervals where 
. So you have
which is clearly positive for
, and in the second interval you have
Together, this means
for all 
.
5. When
, 
reduces to 
, so you have
which is clearly positive for
Together, this means
5. When