Question
Find the angle between the line 
and the plane 2x + y – 3z + 4 = 0.
Solution
The equation of line is 
Its direction ratios are 3, 2, 4.
The equation of plane is 2x + y – 3z + 4 = 0
∴ direction ratios of the normal to the plane are 2, 1, –3.
Let θ be the angle between the line and plane
Its direction ratios are 3, 2, 4.
The equation of plane is 2x + y – 3z + 4 = 0
∴ direction ratios of the normal to the plane are 2, 1, –3.
Let θ be the angle between the line and plane
