Q.
The angle between two vectors A→ and B→ is 1200, then its resultant C will be
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a
C=A→-B→
b
C>A→-B→
c
C=-A→+B→
d
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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