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Question

A straight line segment is 36 cm long. Points are to be marked on the line from both the end points. From each end, the first point is at a distance of 1 cm from the end, the second point is at a distance of 2 cm from the first point and the third point is at a distance of 3 cm from the second point and so on. 

If the points on the ends are not counted and the common points are counted as one, what is the number of points?

The correct answer is

12

A straight line segment is 36 cm long. Points are to be marked on the line from both the end points. From each end, the first point is at a distance of 1 cm from the end, the second point is at a distance of 2 cm from the first point and the third point is at a distance of 3 cm from the second point and so on. 

If the points on the ends are not counted and the common points are counted as one, what is the number of points?

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Important Questions from Equation in a Plane

  1. Which of the following are the direction ratios of S?
  2. If \(p\) is the perpendicular distance from origin to the plane passing through \((1, 0, 0)\), \((0, 1, 0)\) and \((0, 0, 1)\), then what is \(3p^2\) equal to ?
  3. What is the equation of the line L ?
  4. What are the direction ratios of a line M parallel to the plane P ?
  5. Which of the following are the direction ratios of the line of intersection of the given planes?
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