Conic Sections — Class 11 CBSE Mathematics revision notes
A 5-page visual revision sheet for Conic Sections, written for Class 11 CBSE Mathematics. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.
What this Conic Sections sheet covers
- Conic sections, and where they come from
- Circle: centre-radius and general form
- centre (h,k), radius r
- general form, centre and radius drop out of g,f,c
- centre
- radius, real only when g^2+f^2-c>0
- Worked: centre and radius from the general equation
- Parabola, standard forms
- opens right, a>0
- opens left, a>0
- opens up, a>0
- opens down, a>0
- Focus, directrix, latus rectum for y²=4ax
- The other orientation
- Ellipse, standard form (major axis along x)
- a>b>0
- eccentricity
- foci
- relation between a, b and e
- latus rectum
- Sum of focal distances, the defining property
- Worked: eccentricity and foci from the equation
- Hyperbola, standard form
- transverse axis along x
- The sign that separates them
- Ellipse
- Hyperbola
- Circle
- Parabola
- Identify the conic from its eccentricity
- General second-degree recap
- Symbols
- Traps that cost marks
- Tricks that save time
How CapCompass uses this sheet
These notes are not a standalone PDF. CapCompass plans Mathematics chapter by chapter against your real exam dates and free hours, and when the plan reaches Conic Sections the sheet opens inside the study block itself — at the page covering the sub-topic that block is on, with the timer still running. Revision arrives at the moment the plan says revise, instead of having to be gone looking for.