A line passes through the point (6, -7, ...

A line passes through the point `(6, -7, -1) and (2, -3, 1).` The direction cosines of the line so directed that the angle made by it with the positive direction of x-axis is acute, are

`2/3,-2/3,-1/3`

`-2/3,2/3,1/3`

`2/3,-2/3,1/3`

`2/3,2/3,1/3`

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ML KHANNA-CO-ORDINATE GEOMETRY OF THREE DIMENSION-PROBLEM SET (1)

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