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Adding vectors by completing a parallelogram is the:
AParallelogram law
BCommutative rule
CAssociative rule
DDistributive law
Answer & Solution
Correct answer: A. Parallelogram law
1. Two vectors from a common point span a parallelogram.
2. Their sum is its diagonal.
3. That is the parallelogram law of vector addition.
4. So the answer is the parallelogram law.
_Source: NCERT Class 12 Mathematics, Ch 10 'Vector Algebra'_
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