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Mathematics 6 Online
OpenStudy (anonymous):

Find the curvature of r(t)=. I only know that r'(t)=<-2e^-2t, 2, 0>. I've found that r'(t)xr''(t)=<0, 0, -8e^-2t> but how do I find the answer? I know the formula in the book but I don't know how to find the answer.

OpenStudy (anonymous):

we have formula for this, just apply . Look up the formula from your note.

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