Flashcards
FORMULA SHEET E AND H
Cards in this deck (11)
- 1—The line joining mid point of its chord to its pole is called DIAMETER
- 2—Portion of TANGENT b/w POC and directrix subtends 90 degree at FOCUS
- 3—REFLECTION PROPERTY
- 4—Tangent at end pt of focal chord meet at directrix... Only in parabola they are perpendicular
- 5—LR
- 6—Distance between focus and directrix
- 7—If x is the angle between tangent and axis passing through focus and y is angle between tangent and focal radius then ratio of their cosines is e
- 8—Use of partial differentiation is conics
- 9—If the end points of the focal chords are joined to the directrix then axis bisects angle ADB where AB is the focal chord and D is the foot of directrix
- 10—Angle between tangents
- 11—Image of focus about a tangent lies ib directrix in parabola... While in ellipse and hyperbola it lies on circle as second focus as centre and 2a as radius
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- Flashcards on FORMULA SHEET E AND H, created by Nimish Nandurkar on 01/02/2016.
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- Nimish Nandurkar
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