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The volume of a parallelopiped whose edg...

The volume of a parallelopiped whose edges are represented by `-12bari+lamdabark,3barj-bark ` and `2bari + barj -15bark` is 546, then `lamda =`

A

`-3`

B

`-2`

C

2

D

3

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The correct Answer is:
A
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AAKASH SERIES-MULTIPLE PRODUCT OF VECTORS-PRACTICE EXERCISE
  1. If the vectors abari+barj+bark,bari+bbarj+bark,barI+barj+cbarK are cop...

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  2. If the vectors (a, b, c), (b, c, a) and (c, a, b) are linealy dependen...

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  3. The volume of a parallelopiped whose edges are represented by -12bari+...

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  4. The volume of the rectangular box whose coterminal edges along axes of...

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  5. If barx.bara=barx.barb=barx.barc=0 for some non-zero vector barx and a...

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  6. The volume of the tetrahedron having the edges barI+2barj-bark,bari+ba...

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  7. If bara,barb are non-zero and non-collinear vectors then [bara barb ba...

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  8. Which of the following statement is not true

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  9. If bara is perpendicular to barbxxbarc, then which of the following is...

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  10. barixx(barjxxbark)+barjxx(barkxxbari)+barkxx(barixxbarj)=

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  11. barixx(barixxbara)+barjxx(barjxxbara)+barkxx(barkxxbara)=

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  12. If barb, barc are like unit vectors and baraxx (barbxx barc) = bar0 th...

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  13. If bara, barb are two unit perpendicular vectors then baraxx (baraxx b...

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  14. If [baraxx(barbxxbarc)]xxbarc=(bara·barc)barR then barR=

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  15. If bara and barb are unit vectors, then the vector ( bara + barb) xx (...

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  16. If barp is non- · zero vector such that barp. bara= barp. barb = 0 and...

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  17. If (bara xx barb).(barc xx bard) = (bara.barc)(barb.bard) + k(bara.bar...

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  18. If (baraxxbarb)xx(barcxxbard)=[barabarbbard]barc +kbard then k =

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  19. The volume of tetrahedron with edges barixxbarj,barjxxbark,barkxxbari ...

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  20. If bara. barb = barb. barc = barc . bara = 0 then [bara barb barc] =

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