Question
Mathematics Question on Linear Equations
Let the system of linear equations
-x+2y-9z=7
-x+3y+72=9
-2x+y+5z=8
-3x+y+13z = λ
has a unique solution x=α, y=β, z=γ. Then the distance of the point (α, β, γ) from the plane 2x-2y+z=λ is
A
7
B
9
C
11
D
13
Answer
7
Explanation
Solution
The correct option is(A): 7