Let `vec(u) , vec(v), vec(w)` be three unit vectors such that `vec(u)+ vec(v)+vec(d) = vec(a) , vec(a)* vec(u) =3/2,

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Q 2271191926.     Let `vec(u) , vec(v), vec(w)` be three unit vectors such that

`vec(u)+ vec(v)+vec(d) = vec(a) , vec(a)* vec(u) =3/2, vec(a)* vec(v) =7/4` and `| vec(a) | =2` then
A

`vec(u) * vec(v) =3/4`

B

`vec(v)* vec(w) =0`

C

`vec(u) * vec(w) =-1/4`

D

None of these

HINT


Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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