1.
The function is
2.
Let
Then,  is continuous at  when
3.
If is continuous everywhere, then is equal to
4.
The function is continuous and differentiable at , if
5.
The function
6.
A function  
7.
Let for all . If and , then equal to
8.
Let and Then, which one of the following is incorrect?
9.
If . Then, is equal to
10.
The function is