Step 1:

(a) $\"\"$ .

Rectangular equation is $\"\"$ .

Find the parametric equation by substituting $\"\"$ in $\"\"$ .

$\"\"$ .

Parametric equation is $\"\"$ .

step 2:

(b) $\"\"$ .

$\"\"$ .

Rectangular equation is $\"\"$ .

Find the parametric equation by substituting $\"\"$ in $\"\"$ .

$\"\"$

$\"\"$ .

Solution:

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

(b) Parametric equation is $\"\"$