Q. 55.0( 2 Votes )

# Find the angle between each of the following pairs of lines:

and

Answer :

**Given –**

&

**To find –** Angle between the two pair of lines

Direction ratios of L_{1} = (4,3,5)

Direction ratios of L_{2} = (1,-1,1)

**Tip –** If (a,b,c) be the direction ratios of the first line and (a’,b’,c’) be that of the second, then the angle between these pair of lines is given by

The angle between the lines

Rate this question :

Find the value of λ so that the lines

and are perpendicular to each other.

Mathematics - Board PapersShow that lines and intersect. Also find their point of intersection.

Mathematics - Board PapersFind the value of so that the following lines are perpendicular to each other.

Mathematics - Board Papers

Find the value of λ so that the lines and are perpendicular to each other.

Mathematics - Board PapersWrite the direction cosines of the vector

Mathematics - Board PapersFind the angle between the lines 2x = 3y = –z and 6x = –y = –4z.

RD Sharma - Volume 2Find the value of λ, so that the lines and are at right angles. Also, find whether the lines are intersecting or not.

Mathematics - Board PapersIf and respectively are the position vectors of points A, B, C and D, then find the angle between the straight lines and . Find whether and are collinear or not.

Mathematics - Board PapersWrite the angle between the lines and

RD Sharma - Volume 2