Equation of chord joining the points
Ellipse of Class 11
Equation of Chord Joining The Points (acosα, bsinα), (acosβ, bsinβ)
x/a cos
+ 
sin
= cos
Equation when a major axis is along y-axis
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In ellipse x2/a2 + y2/b2 = 1, if b > a, then 2a is length of minor axis and 2b is length of major axis. (a) e2 = 1 − a2/b2 (when a < b) (b) Length of latus rectum = 2a2/b (c) foci: (0, ± be) (d) Directrices: y = ± b/e (e) Vertices: (0, ± b) |
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