If $5f(x)+4f\!\left(\frac{1}{x}\right)=x^{2}-2,\ \forall x\ne 0$ and $y=9x^{2}f(x)$, then $y$ is strictly increasing in:
Previous 10 Questions — JEE Main 2024 (1 February Morning Shift)
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Let $C:\ x^{2}+y^{2}=4$ and $C':\ x^{2}+y^{2}-4\lambda x+9=0$ be two circles.
If the set of all values of $\lambda$ for…
Topic: JEE Main 2024 (1 February Morning Shift)
Let $3,a,b,c$ be in A.P. and $3,\,a-1,\,b+1,\,c+9$ be in G.P.
Then, the arithmetic mean of $a,b,c$ is:
Topic: JEE Main 2024 (1 February Morning Shift)
Let $y = y(x)$ be the solution of the differential equation
$\frac{dy}{dx} = 2x(x+y)^3 - x(x+y) - 1, \quad y(0) = 1.…
Topic: JEE Main 2024 (1 February Morning Shift)
For $0 < \theta < \dfrac{\pi}{2}$, if the eccentricity of the hyperbola
$x^2 - y^2 \csc^2\theta = 5$
is $\sqrt{7}…
Topic: JEE Main 2024 (1 February Morning Shift)
Let $\dfrac{x^2}{a^2} + \dfrac{y^2}{b^2} = 1,\ a > b$ be an ellipse, whose eccentricity is $\dfrac{1}{\sqrt{2}}$ and
…
Topic: JEE Main 2024 (1 February Morning Shift)
Let $f:\mathbf{R}\rightarrow\mathbf{R}$ be defined as
$
f(x)=
\begin{cases}
\dfrac{a - b\cos 2x}{x^2}, & x < 0, \\[6…
Topic: JEE Main 2024 (1 February Morning Shift)
If the system of equations
$
\begin{aligned}
2x + 3y - z &= 5, \\
x + \alpha y + 3z &= -4, \\
3x - y + \beta z &= …
Topic: JEE Main 2024 (1 February Morning Shift)
Let $f:\mathbf{R}\rightarrow\mathbf{R}$ and $g:\mathbf{R}\rightarrow\mathbf{R}$ be defined as
$
f(x)=
\begin{cases}
…
Topic: JEE Main 2024 (1 February Morning Shift)
The area enclosed by the curves $xy+4y=16$ and $x+y=6$ is equal to:
Topic: JEE Main 2024 (1 February Morning Shift)
Let $S=\Big\{x\in\mathbb{R}:(\sqrt3+\sqrt2)^{x}+(\sqrt3-\sqrt2)^{x}=10\Big\}$.
Then the number of elements in $S$ is:
Topic: JEE Main 2024 (1 February Morning Shift)