Hello I need help with these math problems

1.

\fSCALCET8 10.1 .033. Find parametric equations for the path of a particle that moves along the circle x2 + (y 2)2 = 16 in the manner described. (Enter your answer as a comma-separated list of equations. Let x and y be in terms oft.) (a) Once around clockwise, starting at (4, 2). 0 s t S 27!. (b) Three times around counterclockwise, starting at (4, 2). 0 s t s 67:. c) Halfway around counterclockwise, starting at (0, 6). 0 s t s 71