Provide solution for RD Sharma maths class 12 chapter 28 The Plane exercise Fill in the blank question 2
Answer:
10
Hint:
Two perpendicular plane equals 0
Given:
3x - 6y - 2z = 7 and 2x + y - λz = 5
Solution:
The equations of planes are
3x - 6y - 2z -7 =0
and 2x + y - kz - 5 = 0
Since two planes are perpendicular to each other
∴(3)(2) + (-6)(1) + (-2) (-k) = 0 ? a1a2+b1b2+c1c2=0
∴6 - 6 + 2k = 0 2k = 0
k = 0