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JEE MAIN 2021
25-07-2021 S2
Question
If the greatest value of the term independent of ' $x$ ' in the expansion of $\left(x \sin \alpha+a \frac{\cos \alpha}{x}\right)^{10}$ is, $\frac{10!}{(5!)^2}$, then the value of 'a' is equal to:
Select the correct option:
A
-1
B
1
C
-2
D
2
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
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Question Tags
JEE Main
Mathematics
Medium
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