Find parametric equations for the tangent line at the point (cos(-4pi/6),sin(-4pi/6),-4pi/6) on the curve x=cost, y=sint,z=t(adsbygoogle = window.adsbygoogle || []).push({});

x(t) = _________

y(t) = _________

z(t) = _________

r'(t) = <-sin(t), cos(t), 1>

r'(0) = <0,1,1>

my answer:

x = cos(-4pi/6) + 0t

y = sin(-4pi/6) +1t

z = -4pi/6 +t

the only part i got correct is the z, anyone know what im doing wrong?

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# Homework Help: Parametric equations for the tangent line

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