Which $of$ the following are valid parameterizations for the entire unit circle? Choose all that apply.

$x(t)=sin(t),y(t)=cos(t)$

$x(t)=cos(t),y(t)=sin(2t)$

$x(t)=cos(t+1),y(t)=sin(t+1)$

$x(t)=t,y(t)=\sqrt[\phantom{2}]{1-t^2}$

$x(t)=csc(t),y(t)=cot(t)$

$x(t)=2cos(t),y(t)=2sin(t)$

$x(t)=cos(3t),y(t)=sin(3t)$

$x(t)=cos(t),y(t)=sin(t)$