Dowling, L. Wayland (Linnaeus Wayland), b. 1867, Turneaure, F. E. (Frederick Eugene), 1866- · New York, H. Holt and company · leaf 87
uced from Fig. 42,since XPO is a right angle. If the pole is taken at thecenter, b — 0 and (1) becomesr = a, (4) which is the simplest form of the polar equation of a circle. 57. Polar equation of a straight line. Let AB be any straightline, 0 the pole, and OX the initial line (Fig. 43). Let p be… … EXERCISES 1. The center of a circle is atthe point whose polar coordinatesare i^,-\ and the radius is 4. AYrite the polar equation of the circle and Fig. 43 find the length of the se£?ment of the initial line within the circle. Arts. 57-59] POLAR EQUATION OF THE ELLIPSE 71 2. The perpendicular from…
Geometry, Analytic
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