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The area of parallelogram whose diagonal...

The area of parallelogram whose diagonals coincide with the following pair of vectors is `5sqrt3.` The vectors are

A

`3hati+2hatj-hatk,3hati-hatj+4hatk`

B

`(3hati)/(2)-(hatj)/(2)-hatk, 2hati-6hatj+8hatk`

C

`3hati+hatj-2hatk, hati+3hatj+4hatk`

D

`-(3hati+hatj-2hatk),hati-3hatj-4hatk`

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Area Of Parallelogram|When Diagonals Are Given|Area Of Triangle

AAKASH INSTITUTE-VECTOR ALGEBRA-ASSIGNMENT (SECTION-A)
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  2. Given two vectors veca=2hati-3hatj+6hatk, vecb=-2hati+2hatj-hatk and...

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  3. The area of parallelogram whose diagonals coincide with the following ...

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  4. Let veca,vecb ,vecc be three nonzero vectors such that veca+vecb+vecc...

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  5. If vecaxxvecb=vecc,vecb xx vecc=veca, where vecc != vec0, then

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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