$\"\"$

The function is $\"\"$ .

The radius of the earth is $\"\"$ .

Substitue latitude values $\"\"$ , $\"\"$ , $\"\"$ , $\"\"$ , $\"\"$ and $\"\"$ in $\"\"$ .

Draw the table for the corresponding values of latitude .

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

Therefore, the distance range is from $\"\"$ to $\"\"$ .

$\"\"$

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

The distance range is from $\"\"$ to $\"\"$ .