Last updated at July 11, 2018 by Teachoo

Transcript

Example 29 Show that the lines + = = + and + = = + are coplanar. Two lines 1 1 = 1 1 = 1 1 and 2 2 = 2 2 = 2 2 are coplanar if = 0 Now, 2 1 2 1 2 1 1 1 1 2 2 2 = + + + + Adding column 3 to column 1, = 2( ) + 2 + 2 + Taking 2 common from Column 1 = 2 + + + = 2 0 = 0 Therefore, the given two lines are coplanar .

Example 1

Example, 2

Example, 3 Important

Example, 4

Example, 5

Example, 6 Important

Example, 7

Example 8

Example, 9 Important

Example 10

Example 11

Example 12 Important

Example 13

Example 14

Example 15

Example 16

Example 17

Example 18

Example 19

Example 20 Important

Example 21 Important

Example 22

Example 23 Important

Example 24 Important

Example, 25 Important

Example 26

Example 27 Important

Example 28

Example 29 Important You are here

Example 30 Important

Chapter 11 Class 12 Three Dimensional Geometry

Serial order wise

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.