$\"\"$

\

\

The expression is $\"\"$ .

\

$\"\"$ (Find the value using calculator: $\"\"$ ) $\"\"$

\

Compare the values; we know that 0.816 is greater than0.667.

\

So, replace the “ $\"\"$ ”symbol with “ > ” symbol.

\

$\"\"$

\

$\"\"$

\

The true sentence is $\"\"$ .

\