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Q.

The angle between two vector A→ and B→ is θ Resultant of these vectors R→ makes an angle θ2 with A→ . Then the correct relation is

 

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a

AB=1

b

A→=2B→

c

A→=B→2

d

A→=B→

answer is C.

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Detailed Solution

tanθ/2=BsinθA+Bcosθ=2Bsinθ/2.cosθ/2A+B2cosθ/2−1Solving this we get A = B

Hence Option C is the correct answer

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