Exercise 10. Show that the curvature of a planar curve which satisfies the equation y = f(r) is given by \f"(x)| K(1) = 3" (Hint: Use the parametrization a(t) = (t, f(t), 0), and use the formula in previous exercise.) Compute the curvatures of y = x, x?, r, and a. %3D

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Exercise 10
Exercise 10. Show that the curvature of a planar curve which satisfies the
equation y = f(r) is given by
|f"(x)|
K(1) =
3
(Hint: Use the parametrization a(t) = (t, f(t), 0), and use the formula in
previous exercise.) Compute the curvatures of y = x, x², r³, and xª.
Transcribed Image Text:Exercise 10. Show that the curvature of a planar curve which satisfies the equation y = f(r) is given by |f"(x)| K(1) = 3 (Hint: Use the parametrization a(t) = (t, f(t), 0), and use the formula in previous exercise.) Compute the curvatures of y = x, x², r³, and xª.
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