मराठी

Write the Maximum Number of Points of Intersection of 8 Straight Lines in a Plane.

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प्रश्न

Write the maximum number of points of intersection of 8 straight lines in a plane.

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उत्तर

We know that two lines are required for one point of intersection.
∴ Number of points of intersection =\[{}^8 C_2 = \frac{8}{2} \times \frac{7}{1} = 28\]

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Factorial N (N!) Permutations and Combinations
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पाठ 17: Combinations - Exercise 17.4 [पृष्ठ २४]

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आर.डी. शर्मा Mathematics [English] Class 11
पाठ 17 Combinations
Exercise 17.4 | Q 7 | पृष्ठ २४

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