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If hati-2hatj,3hatj+4hatk and lambda hat...

If `hati-2hatj,3hatj+4hatk and lambda hati+3hatj` are coplanar, then `lambda` is equal to

A

`-1`

B

`1//2`

C

`-3//2`

D

2

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The correct Answer is:
C
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SIA PUBLICATION-ADDITION OF VECTORS AND PRODUCT OF VECTORS-Problems
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  2. The position vector of a point lying on the line joining the points wh...

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  3. If hati-2hatj,3hatj+4hatk and lambda hati+3hatj are coplanar, then lam...

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  4. If the volume of parallelopiped with conterminus edges 4hati+5hatj+hat...

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  5. If veca. hati+veca. (2hati+hatj)=veca. (hati+hatj+3hatk)=1 then veca i...

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  6. If the vector veca=2hati+3hatj+6hatk and vecb are collinear and |vecb|...

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  7. If vec(a) and vec(b) are unit vectors, then the vectors (vec(a) + vec(...

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  8. Statement I Two non-zero, non-collinear vectors are linearly independe...

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  9. Match the columns and choose the correct answer.

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  10. Assertion (A): Three vectors are coplanar if one of them is expressibl...

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  11. The points collinear (1,-2,-3) and (2,0,0) among the following is

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  12. If hati+2hatj+3hatk, 3hati+2hatj+hatk are the sides of a parallelogram...

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  13. If G is the centroid of the triangleABC," then "overset(-)(GA)+overset...

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  14. if the vectors hati+3hatj+4hatk, lambda hati-4hatj+hatk are othogonal ...

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  15. The vector vecc. (vecb+vecc) xx (veca +vecb+vecc) is equal to

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  16. If 3hati+3hatj+sqrt3hatk, hati+hatk, sqrt3 hati+sqrt3 hatj+lambda hatk...

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  17. If D,E and F are respectively the mid points of AB, AC and BC in trian...

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  18. If veca, vecb, vecc are three non-coplanar vectors, then the vectors e...

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  19. If a,b,c are three vectors such that a = b + c and the angle between b...

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  20. Let vecam vecvm vecc be the position vectors of the vertices A,B,C res...

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