Plane and solid analytic geometry; an elementary textbook (1905)
Ashton, Charles H. (Charles Hamilton), 1866- · New York, C. Scribner's Sons · leaf 54
bisect each other. 9. What system of lines is represented by the equation X 11 - + T = 1; if we keep a constant and allow h to vary ? if We keep h constant and allowa to vary ? 26. Line determined bya point and its direction. — If the second condi-tion mentioned in Art.22 be given, — a point on… … 38 ANALYTIC GEOMETRY [Cn. IV, § 27 the positive direction of the ^-axis measured in the posi-tive direction of rotation. In the triangle ifPjP, KP . .^„ „ P,K tan rs.r But for all positions of P, KP=^ ■y- yv P,K= ■■ X — xj, and tan KP^P = • tan 7- Hence y-y\_ X — x^ : tan 7. or y - y^ = iim-f -…
Geometry, Analytic
Internet Archive · Boston Library Consortium · Public Domain Mark 1.0. Free to use for anything.
