Find the curve's unit tangent vector. r(t)=(2cost)i + (2sint)j + sqrt(5t) k
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Originally Posted by summer63 Find the curve's unit tangent vector. r(t)=(2cost)i + (2sint)j + sqrt(5t) k Take the derivative of that function to get a tangent vector and then divide by the magnitude of that vector to make it a unit tangent vector.
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