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If vec a , vec b ,a n d vec c be non-ze...

If ` vec a , vec b ,a n d vec c` be non-zero vectors such that no tow are collinear or `( vec axx vec b)xx vec c=1/3| vec b|| vec c| vec adot` If `theta` is the acute angle between vectors ` vec ba n d vecc` , then find the value of `sin thetadot`

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