Math 11 Chapter 3 Lesson 3: Line perpendicular to plane

Math 11 Chapter 3 Lesson 3: Line perpendicular to plane 1. Summary of theory 1.1. Define The line d is said to be perpendicular to the plane . ((alpha)) if d is perpendicular to every line a lies in the plane ((alpha)). Sign: (d bot left( alpha right)). 1.2. Conditions for a line to be …

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