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Area of the parallelogram formed by ve...

Area of the parallelogram formed by vectors `vecA = hati + 2hatj+ 4 hatk` and `vecB= 3 hati - 2hatj` is :

A

`4sqrt(17) "unit"`

B

`2sqrt(17) "unit"`

C

`17sqrt(2) "unit"`

D

`17sqrt(3) "unit"`

Text Solution

Verified by Experts

The correct Answer is:
A
`vectau =vecr xx vecF`
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GRB PUBLICATION-VECTORS-OBJECTIVE QUESTIONS
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  7. Projection of 2hati + 6hatj on Z-axis is :

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  8. vecR is the resultant of vecA and vecB . vecR is inclined to vecA a...

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  9. hata, hatb and hatc are unit vectors. If the hata +hatb = hatc, th...

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  14. A vector vecA is rotated through angle theta about its tail. Chan...

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  16. Linear momentum of an object can be expressed as vecP= (4 cos t)ha...

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  17. vecA and vecB are two vectors. (vecA + vecB) xx (vecA - vecB) can...

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  18. Vertices of a triangle are A(3, 1, 2), B(1, -1, 2) and C(2, 1, 1). ...

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  19. A vector remins unchanged on :

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  20. The velocity of a particle is v=6hati+2hatj-2hatk The component of the...

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