If veca=3hati-hatj+2hatk,vecb=hati-3hatk...

If `veca=3hati-hatj+2hatk,vecb=hati-3hatk`, then `veca*vecb` is :

A

-3

B

2

C

9

D

None of these.

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MODERN PUBLICATION-VECTORS-Exercise

The area of triangle having adjacent sides veca and vecb is :
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The magnitude of : veca=3hati+2hatj is :
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If veca=3hati-hatj+2hatk,vecb=hati-3hatk, then veca*vecb is :
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Which of the following is true :
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The projection of hati-hatj+hatk on hati-hatj is :
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If p(hati+hatj+hatk) is a unit vector, then p is equal to :
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If veca=2hati+3hatj-5hatk and vecb=hati+hatj-hatk, then veca*vecb is :
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Magnitude of the vector vec(PQ), joining the points P(2,3,0) and Q(1,-...
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If veca*vecb=-|veca|*|vecb|, then theta=,
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If veca is a non-zero vector of magnitude 'a' and 'lambda' is a non-ze...
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