$\"\"$

Explain whether $\"\"$ can be an additive identity.

Additive identity:

For any number $\"\"$ , the sum of $\"\"$ and $\"\"$ is $\"\"$ .

Consider, $\"\"$ .

Then, $\"\"$ .

Therefore, $\"\"$ can not be an additive identity.

$\"\"$

The number $\"\"$ can not be an additive identity.