VectorHard
Question
Let the vectors 
and 
be such that 
. Let P1 and P2 be planes determined by the pairs of vectors 
and 
respectively, then the angle between P1 and P2 is
and be such that . Let P1 and P2 be planes determined by the pairs of vectors and respectively, then the angle between P1 and P2 isOptions
A.0
B.π / 4
C.π / 3
D.π / 2
Solution
If θ is the angle between p1 and p2 then normal to the planes are
Then, |N1| × |N2| sin θ = 0
⇒ sin θ = 0 ⇒ θ = 0
Then, |N1| × |N2| sin θ = 0
⇒ sin θ = 0 ⇒ θ = 0
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