Binomial Theorem_JEE-MAIN_08-01-2020_S2 - Competishun – Live JEE & NEET Courses and Exam Prep

JEE MAIN 2020

08-01-20 S2

Question

If $\alpha$ and $\beta$ be the coefficients of $x^4$ and $x^2$ respectively in the expansion of $\left(x+\sqrt{x^2-1}\right)^6+\left(x-\sqrt{x^2-1}\right)^6$, then

Select the correct option:

$\alpha-\beta=60$

$\alpha+\beta=60$

$\alpha-\beta=-132$

$\alpha+\beta=-30$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Mathematics

Medium

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