$\"\"$

The equation is $\"\"$ .

Solve for $\"\"$ .

Consider $\"\"$ .

$\"\"$

There is a $\"\"$ sign when $\"\"$ is written explicitly in terms of $\"\"$ .

So, the equation $\"\"$ does not represents $\"\"$ as a function of $\"\"$ . $\"\"$

The equation $\"\"$ does not represents $\"\"$ as a function of $\"\"$ .