Let T n be the number of all possible triangles formed by joining vertices of an n-sided…
Mathematics · JEE Main · NTA Exams — Permutations and Combinations
Let Tn be the number of all possible triangles formed by joining vertices of an n-sided regular polygon. If
Tn + 1 – Tn = 10, then the value of n is
Tn + 1 – Tn = 10, then the value of n is
- 7
- 5
- 10
- 8
Answer
(B) 5
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