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Find the area of parallelogram whose adj...

Find the area of parallelogram whose adjacent sidesa are given by the vector `veca=2hati+4hatj-hatk` and `vecb=hati-hatj+hatk`.

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The correct Answer is:
`sqrt(38)` sq. units
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ACCURATE PUBLICATION-VECTOR ALGEBRA-QUESTIONS CARRYING 2 MARKS
  1. Find the area of a parallelogram whose adjacent sides are veca=2hati-h...

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  2. Find the area of the parallelogram whose adjacent sides are given by t...

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  3. Find the area of parallelogram whose adjacent sidesa are given by the ...

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  4. The two adjacent sides of a parallelogram are given by the vectors 2ha...

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  5. Find the area of the parallelogram whose diagonals are veca=hati+2hatj...

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  6. Find the area of the parallelogram whose diagonals are veca=3hati-hatj...

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  7. Find the area of the parallelogram whose diagonals are : veca=hati-2ha...

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  8. If veca=2hati-3hatj+4hatk and vecb=5hati+hatj-hatk represents sides of...

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  9. Find the value of a+b, if the points (2,a,3),(3,-5,b) and (-1,11,9) ar...

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  10. Find the area of the triangle formed by the points A(1,1,1),B(1,2,3) a...

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  11. Find the area of triangle with vertices (1,1,2),(2,3,5),(1,5,5).

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  12. Using vectors find the area of the triangle ABC with vertices A(1,0,3)...

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  13. Find the area of the triangle fonned by the points A (1,2,4), B(3,1,-2...

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  14. Using vectors, find the area of the triangle having vertices A (2, 5, ...

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  15. Using vectors, find the area of the triangle having vertices A (3, 2, ...

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  16. Using vectors find the area of the triangle whose vertices arc (0, 1 ,...

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  17. Using vectors, find the area of triangle whose vertices are (2,1,1),(2...

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  18. If veca+vecb+vecc=vec0 show that vecaxxvecb=vecbxxvecc=veccxxveca. Int...

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  19. If A, B and C are the vertices of a triangle ABC, prove sine formula t...

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  20. In a triangle OAC, if B is the mid point of side AC and vec(OA)=veca,v...

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