Teaching MPPSC Assistant Professor Mock Test Series 2025 Mathematics Differential Calculus

Express the relation between radius of spherical-curvature R and the radius of curvature ρ of the curve P and σ (the reciprocal of the torsion).

1
R2 = σ2 + (ρ' ρ)2
2
R2 = ρ2 + (ρ' σ)2
3
R2 = σ2 + \((\frac{p^1}{\sigma})^2\)
4
R2 = ρ'2  + (ρσ)2
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