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Let the vectors veca and vecb be such th...

Let the vectors `veca` and `vecb` be such that `|veca| = 3` and `|vecb| = sqrt2/3`, then `vecaxxvecb` is a unit vector, if the angle between `veca` and `vecb` is:

A

`pi//6`

B

`pi//4`

C

`pi//3`

D

`pi//2`.

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  12. Show that the points A(1,-2,-8), B(5,0,-2) and C(11,3,7) are collinear...

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

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  15. Show that the direction cosines of a vector equally inclined to the ax...

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  16. Let veca=hati+4hatj+2hatk,vecb=3hati-2hatj+7hatk and vecc=2hati-hatj+4...

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  17. The scalar product of the vector hati+hatj+hatk with a unit vector alo...

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  18. If veca, vecb, vecc are mutually perpendicular vectors of equal magnit...

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