The plane 2 x-2 y+z=3 is rotated about the line where it cuts the x y plane by an acute angle \alpha. If the new position of plane contains the point (3,1,1) then 9 \cos \alpha equal to:

JEE Advanced 2020 Full Test 5 Paper 1

Question : 53 of 54

Marks: +1, -0

The plane 2x−2y+z=3 is rotated about the line where it cuts the xy plane by an acute angle α. If the new position of plane contains the point (3,1,1) then 9‌cos‌α equal to:

Your Answer:

Validate

Go to Question:

Prev Question

Next Question