Q15 of 136 Page 28

The cartesian equations of a line AB are Find the direction cosines of a line parallel to AB.

We have,



The equation of the given line can be re-written as,




The direction ratios of the line parallel to AB are proportional to → , 4, 6


The direction cosines of the line parallel to AB are proportional to →


, ,


, ,


More from this chapter

All 136 →
13

Write the formula for the shortest distance between the lines

14

Write the condition for the lines to be intersecting.

 16

If the equations of a line AB are write the direction ratios of a line parallel to AB.

 17

Write the vector equation of a line given by