Plane and solid analytic geometry; an elementary textbook (1905)
Ashton, Charles H. (Charles Hamilton), 1866- · New York, C. Scribner's Sons · leaf 202
, (-3,4). 3. Determine the nature of the conies obtained in problems1 and 2. CHAPTER XIV PROBLEMS IN LOCI 1. Find the locus of the vertex of a right angle whosesides are tangent to the ellipse — + ^ = 1. or 0The equations of any two perpendicular tangents PK and PL may be written in the form… … Fig. 92. two equations in x\ y\and the variable param-eter ly By eliminating ?j, we shall obtain a single equa-tion in x^ and y. Clearing of fractions, transposing, andsquaring, 185 186 ANALYTIC GEOMETRY [Ch. XIV l^y^ + 2 /jo^z/ -H a;2 = ^2 + ^^252 Adding, (l + \^)y + (l^-h^)x = (l-\-l^^)d + (l +…
Geometry, Analytic
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