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The position vectors of the points `P ,\ Q ,\ R` are ` hat i+2 hat j+3 hat k ,\ -2 hat i+3 hat j+5 hat k\ a n d\ 7 hat i- hat k` respectively. Prove that `P ,\ Q\ a n d\ R` are collinear points.

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If the position vectors of the points A , B , C ,Da r e2 hat i+4 hat k ,5 hat i+3sqrt(3) hat j+4 hat k ,-2sqrt(3) hat j+ hat ka n d2 hat i+ hat k respectively, prove that C D is parallel to A Ba n dC D=2/3A Bdot

Prove that the following vectors are coplanar: 2 hat i- hat j+ hat k ,\ hat i-3 hat j-5 hat k\ a n d\ 3 hat i-4 hat j-4 hat k

Prove that the following vectors are coplanar: hat i+ hat j+ hat k ,\ 2 hat i+3 hat j- hat k\ a n d- hat i-2 hat j+2 hat k

Prove that point hat i +2 hat j - 3 hat k ,2 hat i - hat j + hat k and 2 hat i + 5 hat j - hat k from a triangle in space.

Prove that the following vectors are non coplanar: 3 hat i+ hat j- hat k ,2\ hat i- hat j+7 hat k\ a n d\ 7 hat i- hat j+23 hat k

Prove that the following vectors are non-coplanar: hat i+2 hat j+3 hat k ,2\ hat i+ hat j+3 hat k\ a n d\ hat i+ hat j+ hat k

The position vectors of the point A ,B ,C and D are 3 hat i-2 hat j- hat k ,2 hat i+3 hat j-4 hat k ,- hat i+ hat j+2 hat k and 4 hat i+5 hat j+lambda hat k , respectively. If the points A ,B ,C and D lie on a plane, find the value of lambda .

The position vector of the points P and Q are 5 hat i+7 hat j-2 hat k and -3 hat i+3 hat j+6 hat k , respectively. Vector vec A=3 hat i- hat j+ hat k passes through point P and vector vec B=-3 hat i+2 hat j+4 hat k passes through point Q . A third vector 2 hat i+7 hat j-5 hat k intersects vectors A and Bdot Find the position vectors of points of intersection.

Show that the points whose position vectors are -2 hat i+3 hat j ,\ hat i+2 hat j+3 hat k\ a n d\ 7 hat i+9 hat k e collinear.

Show that the points A(-2 hat i+3 hat j+5 hat k), B( hat i+2 hat j+3 hat k) and C(7 hat i- hat k) are collinear.

RD SHARMA ENGLISH-ALGEBRA OF VECTORS-All Questions
  1. Show that the points with position vectors vec a-2 vec b+3 vec c ,\ -...

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  2. Show that the three points A(-2, 3,5); B(1, 2, 3) and C(7, 0, -1) are ...

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  3. The position vectors of the points P ,\ Q ,\ R are hat i+2 hat j+3 ha...

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  4. Show that the point A ,B ,C with position vectors vec a-2 vec b...

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  5. If a ,\ b ,\ c are non coplanar vectors prove that the points having t...

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  6. If a ,\ b ,\ c are non coplanar vectors prove that the points having t...

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  7. Prove that the points having position vectors hat i+2 hat j+3 hat k ,...

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  8. If the points with position vectors 10 hat i+3 hat j ,12 hat i-5 ha...

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  9. If vec a , vec b are two non-collinear vectors, prove that the poi...

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  10. If vec A O+ vec O B= vec B O+ vec O C , prove that A , B , C are coll...

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  11. If the points A(m ,-1),\ B(2,1)a n d\ C(4,5) are collinear find the va...

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  12. Show that the vectors 2 hat i-3 hat j+4 hat k\ a n d-4 hat i+6 hat j-8...

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  13. Show that the points (3,4), (-5, 16), (5,1) are collinear.

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  14. If the vectors vec a=2 hat i-3 hat j\ a n d\ vec b=-6 hat i+m hat j ...

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  15. Show that the points A(1, -2, -8), B(5, 0, -2) and C(11, 3, 7) are col...

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  16. Using vectors show that the points A(-2,3,5), B(7,0,-1), C(-3,-2,-5) a...

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  17. Show that the points whose position vectors are as given below are ...

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  18. Using vector method, prove that the following points are collinear: A...

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  19. Using vector method, prove that the following points are collinear: A...

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  20. Using vector method, prove that the following points are collinear: A...

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