According to what I have read the direction angles of a given vector can only be acute or obtuse. Why can they never be a reflex angle? as per the definition of direction angle it is the angle formed by the vector with unit coordinate vector I, j or k, then wouldn't a vector pointing diagonally in the 3rd or 4rth quadrant have a direction angle with the unit vector 'i' greater than 180 that is a reflex angle??
2026-04-06 17:09:56.1775495396
Direction Angles of a vector
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