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Questions  

Two vector A and B have equal magnitudes. Then the vector A+B is perpendicular to

a
A→×B→
b
A→−B→
c
3A→−3B→
d
All of these

detailed solution

Correct option is A

A→×B→ is a vector perpendicular to plane A→+B→ and hence also perpendicular to A→+B→.

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If A×B=C+D  then select the correct alternative (s):


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