Prove that at the point of intersection of the surfaces (1) where y = x tan 0, the radius of curvature and torsion are given by a(2+0²) ³/2 . P = x² + y² = z², z = a tan` (8 +50 +0¹)¹² and o = a (8 +50² +0¹) 6+0²

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