1
JEE Advanced 2022 Paper 2 Online
Numerical
+3
-1
If

$$\beta=\lim \limits_{x \to 0} \frac{e^{x^{3}}-\left(1-x^{3}\right)^{\frac{1}{3}}+\left(\left(1-x^{2}\right)^{\frac{1}{2}}-1\right) \sin x}{x \sin ^{2} x},$$

then the value of $6 \beta$ is ___________.
2
JEE Advanced 2022 Paper 2 Online
Numerical
+3
-1
Let $\beta$ be a real number. Consider the matrix

$$A=\left(\begin{array}{ccc} \beta & 0 & 1 \\ 2 & 1 & -2 \\ 3 & 1 & -2 \end{array}\right)$$

If $A^{7}-(\beta-1) A^{6}-\beta A^{5}$ is a singular matrix, then the value of $9 \beta$ is _________.
3
JEE Advanced 2022 Paper 2 Online
Numerical
+3
-1
Consider the hyperbola

$$\frac{x^{2}}{100}-\frac{y^{2}}{64}=1$$

with foci at $S$ and $S_{1}$, where $S$ lies on the positive $x$-axis. Let $P$ be a point on the hyperbola, in the first quadrant. Let $\angle S P S_{1}=\alpha$, with $\alpha<\frac{\pi}{2}$. The straight line passing through the point $S$ and having the same slope as that of the tangent at $P$ to the hyperbola, intersects the straight line $S_{1} P$ at $P_{1}$. Let $\delta$ be the distance of $P$ from the straight line $S P_{1}$, and $\beta=S_{1} P$. Then the greatest integer less than or equal to $\frac{\beta \delta}{9} \sin \frac{\alpha}{2}$ is ________.
4
JEE Advanced 2022 Paper 2 Online
Numerical
+3
-1
Consider the functions $f, g: \mathbb{R} \rightarrow \mathbb{R}$ defined by

$$f(x)=x^{2}+\frac{5}{12} \quad \text { and } \quad g(x)= \begin{cases}2\left(1-\frac{4|x|}{3}\right), & |x| \leq \frac{3}{4} \\ 0, & |x|>\frac{3}{4}\end{cases}$$

If $\alpha$ is the area of the region

$$\left\{(x, y) \in \mathbb{R} \times \mathbb{R}:|x| \leq \frac{3}{4}, 0 \leq y \leq \min \{f(x), g(x)\}\right\},$$

then the value of $9 \alpha$ is
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