find a unit parallel to resultant of vectors abar=2icap 3jcap 4kcap, bbar=3icap-5jcap kcap
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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
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
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