\"\"

\

The function \"\".

\

Show that \"\" is continuous on \"\".

\

For a function to be continuous, \"\".

\

Find \"\".

\

\"\"

\

\"\"

\

\"\"

\

\"\"

\

\"\"

\

\"\"

\

\"\".

\

\"\".

\

Hence the function is continuous for all real number.

\

The function \"\" is continuous on \"\".

\

\"\"

\

The function \"\" is continuous on \"\".