Important Questions Related Lines#!#Direction Ratios#!#Direction Cosines

Direction cosine and ratio of line

Types OF vectors || Triangle law OF addition || Parallelogram law OF addition || Section formula || Direction Ratio and Direction Cosine

Direction Cosines And Direction Ratios Of A Line

If a line has the direction ratios -1, 2, 3, then its direction cosines are

Distance Formula|| Section Formula|| Direction Cosine & Direction Ratio || Questions

If the direction ratios of a lines are proportional to 1,-3,2 then its direction cosines are

If a line has the direction ratios 4, -12, 18, then its direction cosines are

If a line has direction ratios 2,1,2 determine its direction cosines.

If as line has direction ratios 2, -1, -2, determine its direction cosines.