Show that the direction cosines of a vector equally inclined to t | Filo

Class 12

Math

Algebra

Vector Algebra

548
150

Show that the direction cosines of a vector equally inclined to the axes OX, OY and OZ are .

Solution: Solution: Let is the angle of the vector equally inclined to the axes OX, OY and OZ.
Then, direction cosines will be .
We know, sum of squares of direction cosines is always 1.

So, direction cosines are .
548
150

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