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Let ` vec a , vec b` and ` vec c` be three non-zero vectors such that no two of them are collinear and `( vec axx vec b)xx vec c=1/3| vec b|| vec a|` . If `theta` is the angle between vectors ` vec b` and ` vec c` then a value of `sintheta` is : (1) `(2sqrt(2))/3` (2) `(-sqrt(2))/3` (3) `2/3` (4) `(-2sqrt(3))/3`

A

`(2sqrt(2))/(3)`

B

`(-sqrt(2))/(3)`

C

`(2)/(3)`

D

`-(2sqrt(3))/(3)`

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The correct Answer is:
(a)
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ARIHANT MATHS ENGLISH-PRODUCT OF VECTORS-Exercise (Questions Asked In Previous 13 Years Exam)
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