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If points hat i+ hat j , hat i- hat j a...

If points ` hat i+ hat j , hat i- hat j` and `p hat i+q hat j+r hat k` are collinear, then

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hat i + hat j + hat k =

If the points with position vectors 10 hat i+3 hat j ,12 hat i-5 hat j and a hat i+11 hat j are collinear, find the value of adot

If the points with position vectors 10 hat i+3 hat j ,12 hat i-5 hat j and a hat i+11 hat j are collinear, find the value of adot

If the points with position vectors 60 hat i+2 hat j , 40 hat i-8 hat j and a hat i-52 hat j are collinear, find the value of adot

Prove that the points hat i- hat j ,4 hat i-3 hat j+ hat k and 2 hat i-4 hat j+5 hat k are the vertices of a right angled triangle.

Prove that the points hat i- hat j ,4 hat i-3 hat j+ hat k and 2 hat i-4 hat j+5 hat k are the vertices of a right angled triangle.

Prove that the points having position vectors hat i+2 hat j+3 hat k ,\ 3 hat i+4 hat j+7 hat k ,\ -3 hat i-2 hat j-5 hat k are collinear.

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.

Column I, Column II The possible value of vec a if vec r=( hat i+ hat j)+lambda( hat i+2 hat i- hat k) and vec r=( hat i+2 hat j)+mu(- hat i+ hat j+a hat k) are not consistent, where lambdaa n dmu are scalars, is, p. -4 The angel between vectors vec a=lambda hat i-3 hat j- hat ka n d vec b=2lambda hat i+lambda hat j- hat k is acute, whereas vecrtor vec b makes an obtuse angel with the axes of coordinates. Then lambda may be, q. -2 The possible value of a such that 2 hat i- hat j+ hat k , hat i+2 hat j+(1+a)k a n d3 hat i+a hat j+5 hat k are coplanar is, r. 2 If vec A=2 hat i+lambda hat j+3 hat k , vec B=2 hat i+lambda hat j+ hat k , vec C=3 hat i+ hat ja n d vec A+lambda vec B is perpendicular to vec C then |2lambda| is, s. 3

Find the value of lambda for which the four points with position vectors - hat j- hat k ,4 hat i+5 hat j+lambda hat k ,3 hat i+9 hat j+4 hat k and 4 hat i+4 hat j+4 hat k are coplanar.

CENGAGE ENGLISH-VECTOR ALGEBRA-All Questions
  1. The sides of a parallelogram are 2 hat i+4 hat j-5 hat k and hat i+2 ...

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  2. If vec a , vec b , vec c are non-coplanar vector and lambda is a re...

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  3. If points hat i+ hat j , hat i- hat j and p hat i+q hat j+r hat k are...

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  4. If the vectors hat i- hat j , hat j+ hat k and vec a form a triangl...

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  5. If the resultant of three forces vec F1=p hat i+3 hat j- hat k , v...

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  6. vec a , vec b , vec c are unit vectors such that vec a+ vec b+ vec c...

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  7. The vector hat i+x hat j+3 hat k is rotated through an angle theta an...

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  8. Prove that point hat i +2 hat j - 3 hat k ,2 hat i - hat j + hat k ...

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  9. Show that the point A , B and C with position vectors vec a =3 hat i ...

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  10. If 2vec(AC)=3vec(CB), then prove that 2vec(OA)+3vec(OB)=5vec(OC) where...

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  11. Find the unit vector in the direction of vector vec (PQ), where P and...

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  12. For given vector, vec a = 2 hat i j +2 hat k and vec b = - hat i + ...

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  13. If the projections of vector vec a on x -, y - and z -axes are 2, ...

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  14. Find a vector in the direction of the vector 5 hat i - hat j + 2 h...

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  15. If vec a , vec b , vec c , vec d are the position vector of point A ,...

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  16. Show that the points A(6,-7,0),B(16 ,-19 ,-4),C(0,3,-6) and D(2,-5,10)...

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  17. Statement 1: The direction cosines of one of the angular bisectors ...

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  18. Statement 1: In DeltaA B C , vec (A B)+ vec (BC)+ vec (C A)=0 State...

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  19. Statement 1: If vec ua n d vec v are unit vectors inclined at an angl...

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  20. Statement 1: If cosalpha,cosbeta,a n dcosgamma are the direction cosi...

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