Three Dimensional Geometry - Class 12 CBSE Important Questions 2023 | Class 12 Maths Chapter 11
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✅ In this video,
✔️ Class: 12th
✔️ Subject: Maths
✔️ Chapter: Three Dimensional Geometry (Chapter 11)
✔️ Topic Name: Three Dimensional Geometry - Class 12 CBSE Important Questions 2023 | Class 12 Maths Chapter 11
✔️ Topics Covered In This Video : In this video we will be discussing the important questions relating to Three Dimensional Geometry as part of the CBSE syllabus for the year 2023 for Class 12. Join Shivani Ma'am as she shares her expert insights on the various topics such as distance, angle, direction and various other related topics. Explore the complex and interesting concepts behind three dimensional geometry and explore how to approach the different questions. Finally, understand how to tackle the tough questions that come up in exams. Gain valuable tips and tricks to help you master the subject and achieve top marks.
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00:00 Introduction: Three Dimensional Geometry
01:28 Overview: Three Dimensional Geometry
02:19 Direction Cosines of a Line
05:38 Notes
07:50 Relation between direction cosines of line
08:20 Direction Ratio of a line
11:05 How to find direction cosines when direction ratios are given
15:40 Direction cosines of a line passing through two points
20:44 Line
43:30 Angle between two lines
49:27 Shortest distance between two lines
53:46 Distance between two skew lines
59:27 Distance between parallel lines
01:04:58 Line in 3D
01:08:53 Equation of a plane in normal form
01:23:53 Equation of a plane perpendicular to a given vector and passing through a given point
01:32:08 Equation of a plane passing through three non collinear points
01:41:45 Intercept form of the equation of a plane
01:43:02 Plane passing through the intersection of two given planes
02:01:06 Coplanarity of Two Lines
02:07:26 Angle between two Planes
02:11:58 Distance of a Point from a Plane
02:16:50 Angle between a line and a plane
02:23:41 Plane ibn 3D
02:29:19 Question 1 TO 10: Exercise Short Answer (S.A.): Three Dimensional Geometry:
Chapter 11
Question 1 - Find the position vector of a point A in space such that OA is inclined at 60° to OX and at 45° to OY and IQAI = 10 units.
03:55:07 Question 11 TO 15: Exercise Short Answer (S.A.): Three Dimensional Geometry:
Chapter 11
05:00:33 Question 16 TO 22: Exercise Long Answer (L.A.): Three Dimensional Geometry:
Chapter 11
Question 16 - Find the foot of perpendicular from the point (2, 3, -8) to the line ...
06:35:30 Question 23 TO 28: Exercise Long Answer (L.A.): Three Dimensional Geometry:
Chapter 11
08:06:04 Website Overview
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