Maths-
General
Easy
Question
I : If 
, 
, 
are three mutually perpendicular Unit Vectors then | + + | = 3.,II. If the sum of two Unit Vectors is a Unit Vectors then | – | = 
.,Which of the above statements is correct ?
- Only I
- Only II
- Both I and II
- Neither I nor II
The correct answer is: Only II
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