Mathematics · 2017
JEE Main · 8 April 2017, Shift 1 · Q69
If the sum of the first n terms of the series √ 3 +√ 75 +√ 243 +√ 507 +…. is 435 √ 3, then n equals:
If the sum of the first n terms of the series $\displaystyle \sqrt{3}+\sqrt{75}+\sqrt{243}+\sqrt{507}+\ldots$. is $\displaystyle 435 \sqrt{3}$, then n equals :
Official answer
(2)
$\displaystyle 15$
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JEE Main 2017 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.