1
JEE Main 2023 (Online) 31st January Evening Shift
Numerical
+4
-1
Change Language
The coefficient of $x^{-6}$, in the

expansion of $\left(\frac{4 x}{5}+\frac{5}{2 x^{2}}\right)^{9}$, is
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2
JEE Main 2023 (Online) 31st January Evening Shift
Numerical
+4
-1
Change Language
If the constant term in the binomial expansion of $\left(\frac{x^{\frac{5}{2}}}{2}-\frac{4}{x^{l}}\right)^{9}$ is $-84$ and the coefficient of $x^{-3 l}$ is $2^{\alpha} \beta$, where $\beta<0$ is an odd number, then $|\alpha l-\beta|$ is equal to ________.
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3
JEE Main 2023 (Online) 31st January Morning Shift
Numerical
+4
-1
Change Language

The remainder on dividing $$5^{99}$$ by 11 is ____________.

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4
JEE Main 2023 (Online) 31st January Morning Shift
Numerical
+4
-1
Change Language

Let $$\alpha>0$$, be the smallest number such that the expansion of $$\left(x^{\frac{2}{3}}+\frac{2}{x^{3}}\right)^{30}$$ has a term $$\beta x^{-\alpha}, \beta \in \mathbb{N}$$. Then $$\alpha$$ is equal to ___________.

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