Permutations and Combinations: JEE Main 2013 Mathematics question

JEE Main 2013 · Session, Shift 1 · Q4819

JEE Main 2013Session, Shift 1MathematicsMediumPermutations and Combinations98× since 2002

Let

{T_n}

be the number of all possible triangles formed by joining vertices of an n-sided regular polygon. If

{T_{n + 1}} - {T_n}

= 10, then the value of n is :

JEE Main 2013 · Session, Shift 1 · Q4819

JEE Main 2013Session, Shift 1MathematicsMediumPermutations and Combinations98× since 2002

Let

{T_n}

be the number of all possible triangles formed by joining vertices of an n-sided regular polygon. If

{T_{n + 1}} - {T_n}

= 10, then the value of n is :

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