Tanner, J. H. (John Henry), b. 1861, Allen, Joseph · New York, American Book Co · leaf 123
ubnormal is the likeprojection of the normal length. 84. Tangent and normal lengths, subtangent and subnormal,for the circle. The definitions given in the preceding articlefurnish a direct method for finding the tangent and normallengths, as well as the subtangent and subnormal, for a circle.E.g.,… … TM=OM- 0T = 3- Fig. 45. Similarly, the tangent length is -H- TPi = Vmt^+MP} = V(J^)24- 4* = ( Again, the equation of the normal at (3, 4) is 4a; —3y = 0;hence, the subnormal is O.V= +3,and the normal is OPi = 5. 63-05] SECANTS, TANGENTS, AND NORMALS 107 EXERCISES Find the lengths of the tangent,…
Geometry, Analytic
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