Mathematics · 2019
JEE Main · 9 January 2019, Shift 2 · Q67
The coefficient of t^4 in the expansion of ((1- t^6)/(1- t))^3 is:
The coefficient of $\displaystyle \mathrm{t}^4$ in the expansion of $\displaystyle \left(\frac{1-\mathrm{t}^6}{1-\mathrm{t}}\right)^3$ is :
Official answer
(3)
$\displaystyle 15$
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JEE Main 2019 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.