if the sum of two unit vectors is a unit vector then what is the magnitude of the difference..........?
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magnitude is also a unit vector ...
yakshibansal83:
its answer is not a unit vector its answer is 3^1/2but how...?
no thats all right
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Let the two vectors be a,b
Given
a+b=1
If two vectors are unit vectors then product of two vectors are also unit
ab=1
Difference of two vectors=√((a+b)^2-4ab))
=√(1-4)
=√-3
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