Q1 of 136 Page 28

The angle between the straight lines
and is

We have,

The direction ratios of the given lines are proportional to 2,5,4 and 1,2,-3.

The given lines are parallel to the vectors

→ and

Let θ be the angle between the given lines.

Now,

= 0

→ θ

Find the angle between the lines and

Find the angle between the lines 2x = 3y = –z and 6x = –y = –4z.

The lines and are

The direction ratios of the line perpendicular to the lines and are proportional to

The angle between the straight linesand is