Find parametric equations for line that is tangent to the curve $x=\cos t,\ y=\sin t, \ z=t$ at the point
$(\cos(\frac{5\pi}{6}) ,\sin(\frac{5\pi}{6}) ,\frac{5\pi}{6} )$ .

Parametrize the line so that it passes through the given point at t=0. All three answers are required for credit.

$x(t)$ =
$y(t)$ =
$z(t)$ =

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