Maths Volume-11(3D Geometry)



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Contents

Synopsis of 3D Geometry - I


Description: 3D geometry studies points, lines, and planes in three-dimensional space using vectors and coordinates.


Synopsis of 3D Geometry - II


Description: Cartesian coordinates represent positions in space, aiding calculations and transformations.


Synopsis of 3D Geometry - III


Description: Distance formula, section formula, and centroid concepts help analyze spatial relationships between points.


Synopsis of 3D Geometry - IV


Description: Equations of planes and lines define spatial structures, intersections, and perpendicularity conditions.


Direction Ratios & Equation of Straight Line - I


Description: Direction ratios describe a line’s orientation, while equations determine its path in 3D space.


Direction Ratios & Equation of Straight Line -II


Description: Vector form and Cartesian form equations of a line are derived using position and direction vectors.


Direction Ratios & Equation of Straight Line -III


Description: Intersection of lines and planes, collinearity, and coplanarity conditions help solve geometric problems efficiently.


Direction Ratios & Equation of Straight Line -IV


Description: Direction ratios help define a line's orientation in space using proportional direction numbers.


Equation of Plane and Sphere - I


Description: A plane’s equation is defined by a point and normal vector in three-dimensional space.


Equation of Plane and Sphere - II


Description: The sphere’s equation represents all points equidistant from a fixed center in three-dimensional space.


Equation of Plane and Sphere - III


Description: A plane can intersect a sphere, forming a great circle or a smaller circle.


Equation of Plane and Sphere - IV


Description: The distance between a plane and a sphere’s center determines intersection type or tangency.


Equation of Plane and Sphere - V


Description: Equation of a plane defines flat surface in space; sphere equation represents all equidistant points.


Revisal Problem (3D Geometry) - I


Description: Revisal problems in 3D geometry reinforce vector concepts, planes, and line equations using examples.


Revisal Problem (3D Geometry) - II


Description: More revisal problems target distance, angles, and symmetry properties in three-dimensional space analysis.


JEE Main & Aieee Archive (3D Geometry) - I


Description: JEE problems test understanding of plane intersections, distance of point from plane, and direction ratios.


JEE Main & Aieee Archive (3D Geometry) - II


Description: Questions involve finding shortest distance between skew lines and angle between intersecting lines or planes.


JEE Main & Aieee Archive (3D Geometry) - III


Description: Geometry problems include locating foot of perpendicular and line equations in vector and Cartesian form.


JEE Main & Aieee Archive (3D Geometry) - III


Description: Geometry problems include locating foot of perpendicular and line equations in vector and Cartesian form.


JEE Main & Aieee Archive (3D Geometry) - IV


Description: Problems mix algebra and geometry requiring visual understanding of space and solving simultaneous equations.


JEE Main & Aieee Archive (3D Geometry) - V


Description: Advanced archive problems apply all 3D concepts: planes, spheres, direction cosines, and shortest distance methods.


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