Find the direction cosines of a line which makes equal angles with the coordinate axes.

Explanation

To find the direction cosines of a line that makes equal angles with the coordinate axes, we can follow these steps:

### Step 1: Define the Direction Cosines
Let the direction cosines of the line be denoted as \( l, m, n \). Since the line makes equal angles with the coordinate axes, we have:
\[ l = m = n = \cos \theta \]
for some angle \( \theta \).
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