Direction cosine and ratio of line

Basics OF 3 D- geometry || Direction cosines and Direction ratios

Angle Between Two vectors in terms of direction cosine and direction ratio

The direction cosines to two lines at right angles are (1,2,3) and (-2,1/2,1/3) then the direction cosine prependicular to both the given lines are

Prove that 1,1,1 cannot be direction cosines of a straight line.

Direction Cosines And Direction Ratios Of A Line

Direction cosines of a line , whose direction ratios are -2,1,2 are

If the directions cosines of a straight line are ltk,k,kgt then

Find the direction cosines of that line whose direction ratios are as follows : (i) 1,-2,2 , (ii) 2,6,3 (iii) 3,1,-2

If l_(1), m_(1), n_(1) and l_(2), m_(2), n_(2) are the direction cosines of two lines and l , m, n are the direction cosines of a line perpendicular to the given two lines, then

If the direction cosines of two lines are l_(1), m_(1), n_(1) and l_(2), m_(2), n_(2) , then find the direction cosine of a line perpendicular to these lines.