According to parallelogram law of vector addition, the resultant is gi

1.	According to parallelogram law of vector addition, the resultant is given by :
Answer» `SQRT(P^(2) +Q^(2) +2PQcos theta)` `sqrt(P^(2) +Q^(2) - 2PQ COS theta)` `sqrt((P^(2))/(Q^(2)))` `sqrt(P^(2) cos^(2) theta +Q^(2) sin ^(2) theta)` ANSWER :A

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