Mathematics for engineering students, Analytical geometry and calculus (1907)
Keller, S. S. (Samuel Smith), 1867-1923, Knox, W. F., [from old catalog] joint author · New York : D. Van Nostrand company · leaf 122
rms of m, a and b, that is, the slopeequation of the tangent, y= mx± Va2 m2 + b2 (Te, m) Art. 80. To draw a tangent to the ellipse. It will be observed that the tangent to the ellipse has the Analytical Geometry. 3 same .v-intercept as the tangent to a circle having themajor axis for a diameter;… … Fig. 42. gency on the ellipse will have the same abscissa, and hencethe ^-intercept of the tangents to the circle at this pointand to the ellipse will cut the X-axis in the same point. Draw a tangent to the circle at this point and join thepoint of intersection with X-axis with the point of…
Geometry, Analytic · Calculus
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