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Ex 11.2, 13 - Chapter 11 Class 12 Three Dimensional Geometry (Term 2)
Last updated at May 29, 2018 by Teachoo
Ex 11.2
Ex 11.2, 1
Ex 11.2, 2
Ex 11.2, 3 Important
Ex 11.2, 4
Ex 11.2, 5 Important
Ex 11.2, 6
Ex 11.2, 7 Important
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Ex 11.2, 9 Important
Ex 11.2, 10 (i) Important
Ex 11.2, 10 (ii)
Ex 11.2, 11 (i) Important
Ex 11.2, 11 (ii)
Ex 11.2, 12 Important
Ex 11.2, 13 You are here
Ex 11.2, 14 Important
Ex 11.2, 15 Important
Ex 11.2, 16
Ex 11.2, 17 Important
Chapter 11 Class 12 Three Dimensional Geometry
Serial order wise
Transcript
Ex 11.2, 13 Show that the lines 5 7 = + 2 5 = 1 and 1 = 2 = 3 are perpendicular to each other. Two lines 1 1 = 1 1 = 1 1 and 2 2 = 2 2 = 2 2 are perpendicular to each other if + + = 0 So, 1 2 + 1 2 + 1 2 = (7 1) + ( 5 2) + (1 3) = 7 + ( 10) + 3 = 0 Therefore, the two given lines are perpendicular to each other.
