a Sketch the graph of the parametric curve x 3 sint 3 y 4 cos t 0 t a y 4 2 4 y 2 Need Help 2 X 2 4 Read It 4 6 8 8 10 10 X X 2 y y 4 2 b Eliminate the parameter t in part a to obtain an equation for this curve in rectangular coordinates x 3 4 S 2 4 6 2 8 10 10 X