Mathematics · 2018
JEE Main · 16 April 2018, Shift 1 · Q67
The coefficient of x^2 in the expansion of the product (2-x^2) ·((1+2 x+3 x^2)^6+(1-4 x^2)^6) is:
The coefficient of $\displaystyle x^2$ in the expansion of the product
$\displaystyle \left(2-x^2\right) \cdot\left(\left(1+2 x+3 x^2\right)^6+\left(1-4 x^2\right)^6\right)$ is :
Official answer
(2)
$\displaystyle 106$
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JEE Main 2018 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.