Question: fIf you already know lay| and [v|, then the formula an = k/v| gives a convenient way to find the curvature. Use it to find

\fIf you already know lay| and [v|, then the formula an = k/v| gives a convenient way to find the curvature. Use it to find the curvature and radius of curvature of the curve r(t) = (cost + t sin t) i + (sin t-t cost) j, t> 0. The curvature is The radius of curvature is

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