1.

If bar(a)=(2,0,1) and bar(b)=(1,1,1) then sin(bar(a)""_(,)^(hat)bar(b))= …………..

Answer»

`SQRT((3)/(5))`
`sqrt((5)/(3))`
`sqrt((2)/(5))`
`sqrt((5)/(2))`

Answer :C


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