Woods, Frederick S. (Frederick Shenstone), 1864-, Bailey, Frederick H. (Frederick Harold), 1865- · Boston, New York [etc.] Ginn and Company · leaf 138
Fig. 105 OP cos D OPr cos (0 — a) OD, (1) which is the equation of the straightline. … 122 POLAR COORDINATES I f a = 0 and p — a, we have the special equationr cos 6 = a,or r = a sec 6. (2) If the straight line passes through the origin, p = 0. Theequation of the line then becomes cos (6 — a) = 0,or simply 6 — — + a, which is of the form 6 = c. (3) 63. The circle. Let C(b, a) be the…
Geometry, Analytic · Calculus
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