Loney, S. L. (Sidney Luxton), 1860-1939 · London, Macmillan and co. · leaf 357
=2, so that i\ = sl^ -2 When 62=135°, r^-- 2 , so that 7 ■^v -2 5 2-- > 2- 1 + 3 + 1 5 To construct the curve take the point G whose coordinates are - 2and 2. Through G draw a straight line AG A inclined at 45° to theaxis of X and mark off AC=GA = J2. Also through A draw a straight line KAK… … On putting a;=0 it will he found that the curve meets the axis ofy where y — Z or 7, and, on putting ?/ = 0, that it meets the axis of xwhere x= - 3 or - 7. Hence 0*3=3, 0(9 = 7, Oi? = 3, and 0R = 1. 366. Tojind the eccentricity of the central conic section ax^-\- 2hxy ■\-hy^= 1 (1). First, let 7i^…
Coordinates · Geometry, Analytic
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