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Questions  

If the angle between the vectors   Aand  B is θ, the value of the product (B×A).A is equal to

a
BA2cosθ
b
BA2sinθ
c
BA2sinθcosθ
d
zero

detailed solution

Correct option is D

We know that scalar product is cyclic,B→ ×A→.A→ = (A→×B→).A→A→ ×A→.B→  =  0.B→ = 0

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