$\"\"$

Statement: If $\"\"$ is a function of $\"\"$ and $\"\"$ is function of $\"\"$ , then $\"\"$ is function of $\"\"$ .

Consider the parametric equations $\"\"$ and $\"\"$ .

Trigonometric identity: $\"\"$ .

Substitute $\"\"$ and $\"\"$ .

$\"\"$ .

$\"\"$ represents a circle equation which is not a function.

Therefore, $\"\"$ is not a function of $\"\"$ .

The statement is false.

$\"\"$

The statement is false.