Ratio- Proportion

Introduction|Ratio|Question Practice|Equivalent Ratio|Proportion|OMR

Ratio || Proportion

If vecr is a vector of magnitude 21 and has direction ratios proportional to 2,-3,6 then vecr is equal to

Find the angle between the vectors with direction ratios proportional to 4,-3,5 and 3,4,5.

Find the angle between the vectors with direction ratios proportional to 1,-2,1 and 4,3,2.

Find the angel between the vectors with direction ratios proportional to 1, -2, 1 and 4, 3, 2.

If a line has direction ratios proportional to 2, -1, -2, then what are its direction cosines?

The angle between a line with direction ratios proportional to 2, 2, 1 and a line joining (3, 1, 4) and (7, 2, 12) is

Find the equation of the plane passing through the intersection of the planes 4x-y+z=0\ a n d\ x+y-z=4 and parallel to the line with direction ratios proportional to 2, 1, 1.