Where Does the Tangent Line to the Curve $\mathbf { r } ( t ) = \left\langle e ^ { - 2 t } , \cos t , 3 \sin t \right\rangle$

Short Answer

Where does the tangent line to the curve $\mathbf { r } ( t ) = \left\langle e ^ { - 2 t } , \cos t , 3 \sin t \right\rangle$ at (1,1,0) intersect the yz-plane?