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Find a vector of magnitude 5 units, and ...

Find a vector of magnitude 5 units, and parallel to the resultant of the vectors `vec a = 2 hat i + 3 hat j - hat k` and `vec b = hat i - 2 hat j+ hat k`

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The correct Answer is:
`((3sqrt10)/(2))hat i + ((sqrt10)/(2)) hat j`
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NEW JOYTHI PUBLICATION-VECTOR ALGEBRA-SOLUTION TO EXERCISE MISCELLANEOUS EXERCISE
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