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The position vectors of Pa n dQ are 5 ha...

The position vectors of `Pa n dQ` are 5` hat i+4 hat j+a hat k` and `- hat i+2 hat j-2 hat k` , respectively. If the distance between them is 7, then find the value of `adot`

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Let the position vectors of the points Pa n dQ be 4 hat i+ hat j+lambda hat ka n d2 hat i- hat j+lambda hat k , respectively. Vector hat i- hat j+6 hat k is perpendicular to the plane containing the origin and the points Pa n dQ . Then lambda equals a -1//2 b. 1//2 c. 1 d. none of these

Let the position vectors of the points Pa n dQ be 4 hat i+ hat j+lambda hat ka n d2 hat i- hat j+lambda hat k , respectively. Vector hat i- hat j+6 hat k is perpendicular to the plane containing the origin and the points Pa n dQ . Then lambda equals 1//2 b. 1//2 c. 1 d. none of these

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 A, B, C with position vectors 2 hat i- hat j+ hat k ,\ hat i-3 hat j-5 hat k and 3 hat i-4 hat j-4 hat k respectively, are the vertices of a right angled triangle. Also, find the remaining angles of the triangle.

The position vectors of the points Pa n dQ with respect to the origin O are vec a= hat i+3 hat j-2 hat k and vec b=3 hat i- hat j-2 hat k , respectively. If M is a point on P Q , such that O M is the bisector of angleP O Q , then vec O M is a. 2( hat i- hat j+ hat k) b. 2 hat i+ hat j-2 hat k c. 2(- hat i+ hat j- hat k) d. 2( hat i+ hat j+ hat k)

Find the angle between the vectors hat i-2 hat j+3 hat k and 3 hat i-2 hat j+ hat kdot

Show that the points A, B and C with position vectors, veca=3 hat i-4 hat j-4 hat k , vecb=2 hat i- hat j+ hat k and vecc= hat i-3 hat j-5 hat k respectively form the vertices of a right angled triangle.

Show that the point A , B and C with position vectors vec a =3 hat i - 4 hat j -4 hat k vec b = 2 hat i j + hat k and vec c = hat i - 3 hat j - 5 hat k , respectively form the vertices of a right angled triangle.

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 .

Find vec adot vec b when: vec a= hat i-2 hat j+ hat k\ a n d\ vec b=4 hat i-4 hat j+7 hat k

CENGAGE ENGLISH-VECTOR ALGEBRA-All Questions
  1. Find a vector magnitude 5 units, and parallel to the resultant of t...

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  2. Show that the points A(1,-2,-8),B(5,0,-2)a n dC(11,3,7) are collinear,...

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  3. The position vectors of Pa n dQ are 5 hat i+4 hat j+a hat k and - hat ...

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  4. Given three points are A(-3,-2,0),B(3,-3,1)a n dC(5,0,2)dot Then find ...

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  5. Let A B C D be a p[arallelogram whose diagonals intersect at P and ...

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  6. If A B C D is quadrilateral and Ea n dF are the mid-points of A Ca n d...

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  7. If A B C D is a rhombus whose diagonals cut at the origin O , then p...

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  8. Let D ,Ea n dF be the middle points of the sides B C ,C Aa n dA B , re...

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  9. Consider the set of eight vectors V[ahati+bhatj+chatk:a,b,c in {1-1}]....

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  10. Find the direction cosines of the vector joining the points A(1,2,-...

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  11. Find the direction cosines of the vector hat i+2 hat j+3 hat kdot

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  12. The median AD of the triangle ABC is bisected at E and BE meets AC at ...

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  13. Vectors vec a and vec b are non-collinear. Find for what value of...

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  14. i. If vec a , vec b a n d vec c are non-coplanar vectors, prove...

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  15. Prove that a necessary and sufficient condition for three vectors ...

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  16. If vec a , vec b , vec ca n d vec d are distinct vectors such that ...

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  17. If vec a , vec ba n d vec c are non-coplanar vectors, prove that the ...

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  18. Find the unit vector in the direction of the vector vec a= hat i+ ...

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  19. let P an interioer point of a triangle A B C and A P ,B P ,C P meets t...

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  20. Let vec a , vec ba n d vec c be unit vectors, such that vec a+ vec b...

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