The projections of a line segment on the...

The projections of a line segment on the coordinate axes are 12,4,3 respectively. The length and direction cosines of the line segment are

`12/13,-4/13,3/13`

`-12/13,-4/13,3/13`

`12/13,4/13,3/13`

none of these

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OBJECTIVE RD SHARMA ENGLISH-THREE DIMENSIONAL COORDINATE SYSTEM -Exercise

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