The position of an object in circular motion is modeled by the given parametric equations, where t is measured in seconds. x = 4 cos(t), y = 4 sin(t) How long (in sec) does it take to complete one revolution? '3' Is the motion clockwise or counterclockwise? O clockwise @ counterclockwise / Find an equation of the tangent to the curve at the point corresponding to the given value of the parameter. x = sin(7t) + cos(t), y = cos(7t) sin(t); t = 2r