VectorHard
Question
Let 
and 
be non-zero vectors such that 
If θ is the acute angle between the vectors 
and , then sin θ equals
and be non-zero vectors such that If θ is the acute angle between the vectors and , then sin θ equalsOptions
A.
B.
C.
D.
Solution
⇒ 
⇒
⇒
= 0 ⇒ cos θ = - 1/3 ⇒ sin θ = 
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