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OpenStudy (anonymous):
Given a vector r(t)=(6-2t)i+(3+4t-6t^2)j-(1+3t-2t^2)k, what is the distance to the origin at t = 3?
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OpenStudy (anonymous):
Basically they want you to find: \[ \|\mathbf r(3)\| \]
OpenStudy (anonymous):
So find \(\mathbf r(3)\) and find it's magnitude.
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