$\"\"$

(a)

The parametric equations are $\"\"$ and $\"\"$ .

Rewrite the equation.

$\"\"$

Apply logarithm on each side

$\"\"$

Substitute $\"\"$ in the $\"\"$ .

$\"\"$

The equation of curve in cartesian form is $\"\"$ . $\"\"$

(b) $\"\"$ .

The domain of the function is $\"\"$ .

Graph:

Graph the parametric equations $\"\"$ and $\"\"$ :

$\"\"$ .

$\"\"$

(a) The equation is $\"\"$ .

(b)

Graph of the parametric equations $\"\"$ and $\"\"$ is $\"\"$ .