Symmetric Form or Parametric Form of equation of straight line (2)

  • 9 years ago
Lesson#16
Symmetric Form or Parametric Form of equation of straight line (2)
THEOREM: Equation of a straight line whose inclination is a and a point of line is Q(x1, y1) is written as
x - x1/cos a = y - y1/sin a = r
Here "r" is parameter and is directed distance between given point and arbitrary point.

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