1.

The equation of a plane containing the line of intersection of the planes 2x – y – 4 = 0 and y + 2z – 4 = 0 and passing through the point (1, 1, 0) is -(1)   x – 3y – 2z = – 2(2)   x – y – z = 0(3)   x + 3y + z = 4(4)   2x – z = 2 

Answer»

Correct option  (2) x – y – z = 0 

Explanation:

Required equation of plane

(2x – y – 4) + λ (y + 2z – 4) = 0

Required plane passes through (1, 1, 0)

(2 – 1 – 4) + λ (1 + 0 – 4) = 0 

λ = – 1 

(2x – y – 4) – (y + 2z – 4) = 0

2x – 2y – 2z = 0

x – y – z = 0 



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