Show that if y F(x), the formula for k in reduces to k ZF0(x)Z f1 (F9(x))2 g 3>2
Chapter 9, Problem 22(choose chapter or problem)
Show that if y = F(t), the formula for \(\kappa\) in Problem 21 reduces to
\(\kappa=\frac{\left|F^{\prime \prime}(x)\right|}{\left[1+\left(F^{\prime}(x)\right)^{2}\right]^{3 / 2}}\).
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