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hati.(hatjxxhatk)+hatj.(hatixxhatk)+hatk...

`hati.(hatjxxhatk)+hatj.(hatixxhatk)+hatk.(hatixxhatj)` is equal to

A

3

B

0

C

-3

D

1

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The correct Answer is:
4
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AAKASH INSTITUTE-VECTOR ALGEBRA-ASSIGNMENT (SECTION-A)
  1. If vecaxxvecb=vecc,vecb xx vecc=veca, where vecc != vec0, then

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  2. ABCDEF is a regular hexagon where centre O is the origin, if the posit...

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  3. hati.(hatjxxhatk)+hatj.(hatixxhatk)+hatk.(hatixxhatj) is equal to

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  4. For any vector veca the value of (vecaxxhati)^2+(vecaxxhatj)^2+(vecaxx...

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  5. If |vecaxxvecb|=2,|veca.vecb|=2, then |veca|^(2)|vecb|^(2) is equal to

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  6. |(vecaxxvecb)|^(2) is eqaul to

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  7. If veca and vecb are unit vectors, then which of the following values ...

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  8. If veca.veci=veca.(hati+hatj)=veca.(hati+hatj+hatk) . Then find the un...

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  9. If veca +vecb +vecc =vec0, |veca| =3 , |vecb|=5 and |vecc| =7 , then ...

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  10. The vector cosalpha.cosbetahati+cosalpha.sinbetahatj+sinalphahatk is a...

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  11. If |veca|=|vecb|, then (veca+vecb).(veca-vecb) is equal to

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  12. If veca and vecb are unit vectors inclined at an angle theta, then the...

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  13. The projection of the vector hati+hatj+hatk along the vector of hatj i...

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  14. If OACB is a parallelogram with vecOC=veca and vecAB=vecb, then vecOA ...

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  15. If veca, vecb, vecc, vecd are the position vectors of points A, B, C a...

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  16. If the vectors 3hati+lambdahatj+hatk and 2hati-hatj+8hatk are perpendi...

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  17. The vectors 2hati+hatj-4hatk and ahati+bhatj+chatk are perpendicular, ...

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  18. Let veca , vecb , vecc be three unit vectors such that |veca + vecb +...

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  19. If theta is the angle between the vectors 2hati-2hatj+4hatk and 3hati+...

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  20. If veca=2hati-3hatj-hatk and vecb=hati+4hatj-2hatk, then vecaxxvecb is

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