Bailey, Frederick H. (Frederick Harold), 1865- · Boston, London, Ginn & Co. · leaf 122
not be treated by either of theprevious methods, such as finding the normal passing through any pointnot on the circle, etc. 56. Subtangent and Subnormal. The subtangent is the projection upon OX of that portionof the tangent included between the point of tangency andOX. The subnormal is the… … Fig. 48. The circle is x^ + y2 = 25. Tlie coiJrdinates of P are 3 and 4. PT isthe tangent, OP the normal, MT the subtangent, and OM the subnormal. The equation of PT is 3x + 4y = 25.-. MT 25 10 3 ^~ 3 coordinates of T are0M = 3. and 0. 57. Length of a Tangent Drawn from Pi(xi, yi) to theCircle x^ +…
Geometry, Analytic
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