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JEE Main Mathematics question

MathematicsPermutations and CombinationsJEE Main

There are distinct points on the circumference of a circle. The number of pentagons that can be formed with these points as vertices is equal to the number of possible triangles. Then, the value of is

Answer: (B)

Solution

The number of pentagons is and the number of triangles is . $Missing argument for \binom\binom

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Question ID VK-020703