Mathematics · 2019
JEE Main · 8 April 2019, Shift 1 · Q67
The sum of the co-efficients of all even degree terms in x in the expansion of (x+√(x^3-1))^6+(x-√(x^3-1))^6,(x>1) is equal to:
The sum of the co-efficients of all even degree terms in $\displaystyle x$ in the expansion of
$$\left(x+\sqrt{x^3-1}\right)^6+\left(x-\sqrt{x^3-1}\right)^6,(x>1)
$$
is equal to:
Official answer
(1)
$\displaystyle 24$
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JEE Main 2019 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.