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Question
Select the correct option from the given alternatives:
The 2 vectors `hat"j" + hat"k"` and `3hat"i" - hat"j" + 4hat"k"` represents the two sides AB and AC respectively of a Δ ABC. The length of the median through A is
Options
`sqrt34/2`
`sqrt48/2`
`sqrt18`
of the median through A is
Solution
`sqrt34/2`
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