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2015-09-15T23:17:36+05:30

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Vector A =  2 i + 3 j + 4 k
vector B = 3 i - 5 j + k

add the two..

resultant vector = 5 i - 2 j + 5 k
magnitude of the resultant vector = √(5² + 2² + 5²) = √54 units

unit vector parallel to the resultant vector = [5 i - 2 j + 5 k]/ √54
         = (5/√54 )  i -  (2/√54) j + 5 /√54) k

1 5 1
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