The angle between two vectors A→ and B→ is 1200, then its resultant C will be

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C=A→-B→

C>A→-B→

C=-A→+B→

answer is D.

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Detailed Solution

C=A2+B2+2ABcos1200=A2+B2-AB and A→-B→=A2+B2-2ABcos1200=A2+B2+AB Comparing them , we can say C<|A→−B→|

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