Find the direction cosines of the line s...

Find the direction cosines of the line segment joining (3,6,1) and (4,-1,5).

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RELATION AND FUNCTION INVERSE TRIGONOMETRIC FUNCTIONS LINEAR PROGRAMMING
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USHA PUBLICATION-VECTORS THREE DIMENSIONAL GEOMETRY -EXERCISE

Write the equation of the plane passes through y-axis and z-axis.
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Find the direction cosines of the line segment joining (3,6,1) and (4,...
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