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Let veca = hati + hatj +hatk, vecc =hatj...

Let `veca = hati + hatj +hatk, vecc =hatj - hatk` and a vector `vecb` be such that `veca xx vecb = vecc` and `veca.vecb=3`. Then `|vecb|` equals:

A

`sqrt(11/3)`

B

`(sqrt11)/(3)`

C

`(11)/(sqrt3)`

D

`11/3`

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The correct Answer is:
A
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DISHA PUBLICATION-VECTOR ALGEBRA-EXERCISE -2 : CONCEPT APPLICATOR
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  16. A vector veca=(x,y,z) makes an obtuse angle with F-axis, and make equa...

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  17. Let vecOB = hati + 2hatj + 2hatk " and" vecOA = 4hati + 2hatj + 2hatk ...

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  18. If a1 , a2 and a3 are three numbers satisfying a1^2 + a2^2 +a3^2 = 1 ,...

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