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What is the angle between P and the resultant of (P+Q) and (PQ)?

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a
Zero
b
tan-1(PQ)
c
tan-1(QP)
d
tan-1(P-Q)(P+Q)

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detailed solution

Correct option is A

Resultant R→ = P→+Q→+P→−Q→  =  2P→The angle between P→ and 2P→ is zero.


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