
In order to be differentiable everywhere,
must first be continuous everywhere, which means the limits from either side as
must be the same and equal to
. By definition,
, and


so we need to have
.
For
to be differentiable at
, the derivative needs to be continuous at
, i.e.

We then need to have

Then

Answer:
8
Step-by-step explanation:
One because if you put two then the would be 50 and thats over 41
Answer:
7/20
Step-by-step explanation:
2/5 = 8/20
1/4 = 5/20
20/20 - 13/20 = 7/20