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If veca =veci-2vecj+veck,vecb=2veci-vecj...

If `veca =veci-2vecj+veck,vecb=2veci-vecj+2veck, vecc=3veci+vecj-veck` be such that `((veca)/(lambdavecb))` is perpendicular to c, the the value of `lambda` is:

A

`(1)/(2)`

B

-1

C

1

D

0

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The correct Answer is:
D
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PREMIERS PUBLISHERS-Vector Algebra -I-Choose Correct Option
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  2. A vector vecOP makes 60^(@) each with positive direction of x and y ax...

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  3. If veca =veci-2vecj+veck,vecb=2veci-vecj+2veck, vecc=3veci+vecj-veck b...

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  4. If O is the origin and A,B are the points (2,1,-3) and (1,1,1) respect...

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  5. For any two vectors veca and vecb|veca X vecb|^(2)+|veca.vecb| is:

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  6. If veca,vecb and vecc are three unit vectors satisfying veca-vecb-sqrt...

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  7. Show that vecaxx(vecb+vecc)+vecbxx(vecc+veca)+veccxx(veca+vecb)=vec0.

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  8. Two vertices of a triangle hence position vetors 2veci+4vecj-5veck and...

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  9. If 2veca+6vecb and 3veca+mvecb are parallel then the vector of m is:

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  10. Match the following

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  11. Find the incorrect statement

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  12. Find the incorrect statement

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  13. Find the correct statement

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  14. Find the correct statement: Given vec OA =veca, vecOB=vecb and vecOP =...

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  15. The vectors veca-vecb,vecb-vecc,vecc-veca are

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  16. Find the odd man out.

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  17. Find which in suitable for the blank space given below:|veca.vecb|…….....

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  18. Assertion If D is the midpoint of the side BC of a triangle ABC then v...

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  19. Assertion If G is the centroid of the triangle ABC then vecGA+vecGB+v...

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  20. Find (veci+vecj).{(vecj+veck) X (veck+veci)}:

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