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Questions  

If P=Q then which of the following is NOT correct

a
P^=Q^
b
|P→|=|Q→|
c
PQ^=QP^
d
P→+Q→=P^+Q^

detailed solution

Correct option is D

If two vectors are equal, means both magnitude and direction are equal.|P→|=|Q→| and P^=Q^Also, Vector P→=PP^ and Q→=QQ^∴P→+Q→=PP^+QQ^

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