Q18 of 136 Page 28

The equations of a line are given by Write the direction cosines of a line parallel to this line.

We have,



The equation of the given line can be re-written as,



The direction ratios of the line parallel to the given line are proportional to → -3, 3, 6


The direction cosines of the line parallel to the given line are proportional to →


, ,


, ,


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If the equations of a line AB are write the direction ratios of a line parallel to AB.

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