The function is $\"\"$ and the interval is $\"\"$ .

Construct a table for different values of $\"\"$ in the interval $\"\"$ .

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \

$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$
$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$

Observe the table:

$\"\"$ is negative and $\"\"$ is positive, therefore the value of $\"\"$ changes sign for $\"\"$ .

And there is no sign change between $\"\"$ and $\"\"$ .

As the $\"\"$ tends to $\"\"$ from the left $\"\"$ decreases, then begins increasing at $\"\"$ .

By the location principle $\"\"$ has a zero between $\"\"$ and $\"\"$ .

There may be real zeros between consecutive integers $\"\"$ and $\"\"$ .

Graph:

Graph the function $\"\"$ :

$\"\"$

Observe the graph:

The curve crosses the $\"\"$ -axis between $\"\"$ and $\"\"$ .

Therefore, the zero of $\"\"$ on $\"\"$ occur between $\"\"$ and $\"\"$ .

The zero of $\"\"$ on $\"\"$ occur between $\"\"$ and $\"\"$ .