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the position vector of a particle moving in the x-y plane is <2 cos t, 4 sin t> in the interval [0,2pi). for what value(s) of t does the path of the particle have a vertical tangent?
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the position vector of a particle moving in the x-y plane is <2 cos t, 4 sin t> in the interval [0,2pi). for what value(s) of t does the path of the particle have a vertical tangent?

User Swordray
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User Dan Puzey
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