Schmall, Charles Nelson. [from old catalog] · New York, D. Van Nostrand company · leaf 134
of the O in polar co-ordinates. Special Cases. (1) If ON coincide with OC, then ^^ = 0. . •. p2 _ 2 /opj cos ^ + Pi^ - ^2 ^ Q ^2) (2) If the pole is on the circle, p^ =^ r. .-. p - 2rcos {d - e^) = 0 (3) (3) If pole is on the circle, and polar axis passes through the center, p^=r, e^=o... p -… … 118 ANALYTICAL GEOMETRY EXERCISES. 1. The diameter of the O through (o, o), (/o^, d^, (p^, 0^), is V/9,2 + P2 - 2 p,p, cos {d, - d,) -=- sin {6^ - 6,). 2. The condition that the line a cos 6 + b sin dmay touch the circle p = 2 a cos ^is a^fe^ + 2 a6 - 1 =- 0. 3. The tangents from the origin to the…
Geometry, Analytic
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