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veca=2hati-hatj+hatk,vecb=hatj+2hatj-hat...

`veca=2hati-hatj+hatk,vecb=hatj+2hatj-hatk,vecc=hati+hatj -2 hatk` . A vector coplanar with `vecb and vecc`. Whose projection on `veca` is magnitude `sqrt(2/3)` is

A

`-(2hati+3hatj-3hatk)`

B

`2hati-3hatj+6hatk`

C

`hati-hatj+2hatk`

D

`3hati+2hatj-hatk`

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AAKASH INSTITUTE ENGLISH-VECTOR ALGEBRA-ASSIGNMENT (SECTION-B)
  1. Let veca,vecb and vecc are three vectors such that |veca|=3, |vecb|=3,...

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  2. If veca=hati+hatj+hatk, vecb=4hati+3hatj+4hatk and vecc=hati+alphahatj...

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  3. veca=2hati-hatj+hatk,vecb=hatj+2hatj-hatk,vecc=hati+hatj -2 hatk . A v...

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  4. find the area of a parallelogram whose diagonals are veca=3hati+hatj-2...

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  5. If a and b are unit vectors, then the vector defined as V=(a+b)times(a...

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  6. Let veca=2hati+2hatj+hatk and vecc is a vector such that |vecaxxvecc|^...

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  7. ABCD is a quadrilateral with vec(AB) = veca, vec(AD) = vecb and vec(A...

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  8. A unit vector perpendicular to the plane passing through the points w...

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  9. If veca , vecb, vecc are the position vectors of the vertices. A,B,C ...

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  10. If vecpxxvecq=vecr and vecp.vecq=c, then vecq is

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  11. If veca = (hati + hatj +hatk), veca. vecb= 1 and vecaxxvecb = hatj -ha...

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  12. If veca,vecb,vecc be three vectors such that [veca vecb vec c]=4 then ...

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  13. If vecr=x(vecaxxvecb)+y(vecbxxvecc)+z(veccxxveca) and [veca vecb v...

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  14. If the verticles of a tetrahedron have the position vectors vec0, hati...

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  15. If [(2veca+vecb)veccvecd]=lambda[vecaveccvecd]+mu[vecbveccvecd] then l...

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  16. Unit vectors veca and vecb ar perpendicular , and unit vector vecc is ...

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  17. The position vectors of the sides of triangle are 3hati+4hatj+5hatk, h...

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  18. vecb and vecc are non- collinear if veca xx (vecb xx vecc) + (veca .ve...

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  19. Let veca = 2hati + hatj + hatk, and vecb = hati+ hatj if c is a vecto...

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  20. vecr=3hati+2hatj-5hatk, veca=2hati-hatj+hatk, vecb=hati+3hatj-2hatk, v...

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