AAI ATC Junior Executive 25 Mar 2021 Shift 1 Paper

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Question : 76 of 120

Marks: +1, -0

Determine the direction cosines of the line passing through the two points (-2, 3, -4) and (1, 2, 3)?

$\;{5}/{{√{411}}},\;{−5}/{{√{411}}},\;{19}/{{√{411}}}$
$\;{3}/{{√{361}}},\;{−1}/{{√{361}}},\;{19}/{{√{361}}}$
$\;{5}/{{√{387}}},\;{−1}/{{√{387}}},\;{19}/{{√{387}}}$
$\;{3}/{{√{59}}},\;{−1}/{{√{59}}},\;{7}/{{√{59}}}$

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