Calculate the cosine of the angle A of t...

Calculate the cosine of the angle A of the triangle with vertices A(1,-1,2), B(6,11,2),C(1,2,6).

Topper's Solved these Questions

THREE DIMENSIONAL GEOMETRY
PRADEEP PUBLICATION|Exercise EXERCISE|373 Videos
RELATIONS AND FUNCTIONS
PRADEEP PUBLICATION|Exercise EXERCISE|401 Videos
VECTORS
PRADEEP PUBLICATION|Exercise EXERCISE|438 Videos

Similar Questions

Explore conceptually related problems

Find the area of the triangle with vertices A(1,12), B(2,3,5), C(1,5,5)

Find the angles of the triangle whose vertices are (0,-1,-2), B(3,1,4) and C(5,7,1).

Find the area of the triangle with vertices A (1, 1, 2), B (2, 3, 5) and C (1, 5, 5).

Determine the angle B of the triangle with vertices A (- 2, 1), B (2, 3) and C (- 2, - 4).

Find the measure of the angle A of the triangle ABC with vertices A (2, 3), B (-2, 2) and C(0, 2).

Find the area of the triangle whose vertices are (2,7),(1,1),(10,8).

Using vectors find the area of the triangle ABC with vertices A(1,0,3),B(2,1,4) and C(4,3,1).

Find the area of the triangle whose vertices are : A(1,2,3), B(2,-1,4) and C(4,5,-1)

PRADEEP PUBLICATION-THREE DIMENSIONAL GEOMETRY-EXERCISE

Find the coordinates of the centroid of a triangle the mid points of w...
Text Solution
|
A (3, 2, 0), B(5, 3, 2), C(- 9, 6, -3) are three points forming a tria...
Text Solution
|
Calculate the cosine of the angle A of the triangle with vertices A(1,...
Text Solution
|
The direction ratios of a vector are <1,-3,-2>, find its direction cos...
Text Solution
|
Find the direction cosines of the vectors: 2hati+2hatj-hatk
Text Solution
|
Find the direction cosines of the vectors: 6hati-2hatj-3hatk
Text Solution
|
Find the direction cosines of the vectors: 3hati+4hatk
Text Solution
|
Find the direction cosines of the vectors: hatk
Text Solution
|
Find the angles at which the following vectors are inclined to each of...
Text Solution
|
Find the angles at which the following vectors are inclined to each of...
Text Solution
|
Find the angles at which the following vectors are inclined to each of...
Text Solution
|
Find the angles at which the following vectors are inclined to each of...
Text Solution
|
Can a vector have direction angles 45^@, 60^@ and 120^@?
Text Solution
|
A line makes angles 45^@ and 60^@ with the positive direction of the a...
Text Solution
|
If a line makes angles 90^(@),60^(@) and 30^(@) with the positive dire...
Text Solution
|
A line passes through the points (6,-7,-1)a n d(2,-3,1)dot Find the ...
Text Solution
|
A vector vecr has length 14 and direction numbers <2,6,-3>. Find the d...
Text Solution
|
A vector vecv is inclined at equal angles to the positive directions o...
Text Solution
|
Show that the line joining the mid points of two sides of a triangle i...
Text Solution
|
The Cartesian equations of a line are (x-5)/3 = (y+4)/7 =(z-6)/2. Ve...
Text Solution
|