Question

Prove that the radius of curvature for a curve. r^n=a^n cosn téta

Answer 1

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$745..8 > 5 < .5 | { { {1 | \frac{ {1 |? \times \frac{5 \\ 1 \\ 42}{?} | }^{2} }{?} | }^{2} \times \frac{?}{?} }^{2} }^{?} |$