Mathematics · 2026
JEE Main · 2 April 2026, Shift 2 · Q7
Let p_n denote the total number of triangles formed by joining the vertices of an n-side regular polygon. If p_n +1 - p_n =66, then the sum of all…
Let $\displaystyle \mathrm{p}_{\mathrm{n}}$ denote the total number of triangles formed by joining the vertices of an n-side regular polygon. If $\displaystyle \mathrm{p}_{\mathrm{n}+1}-\mathrm{p}_{\mathrm{n}}=66$, then the sum of all distinct prime divisors of n is :
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle 5$
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JEE Main 2026 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.