The following is a graph of the parametric curve x(t) = sin(t), y(t) = |cos(2t)|, -π < t < π.
Which of the following vector functions describes the same curve?
r(t) = <sin(t), |cos(2t)|>, -π < t < π
r(t) = <sin(t), cos(2t)>, -π < t < π
r(t) = <|cos(2t)|, sin(t)>, -π < t < π
r(t) = <t, sin(t), |cos(2t)|>, -π < t < π