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JEE Main 2024
List of top Questions asked in JEE Main- 2024
The solution of the differential equation \( (x^2 + y^2) dx - 5xy \, dy = 0, \, y(1) = 0 \), is:
JEE Main - 2024
JEE Main
Mathematics
Differential equations
Let \( P \) be a parabola with vertex \( (2, 3) \) and directrix \( 2x + y = 6 \). Let an ellipse \( E : \frac{x^2}{a^2} + \frac{y^2}{b^2} = 1 \), \( a > b \), of eccentricity \( \frac{1}{\sqrt{2}} \) pass through the focus of the parabola \( P \). Then the square of the length of the latus rectum of \( E \) is
JEE Main - 2024
JEE Main
Mathematics
Coordinate Geometry
Let $m$ and $n$ be the coefficients of the seventh and thirteenth terms respectively in the expansion of \[\left( \frac{1}{3}x^{\frac{1}{3}} + \frac{1}{2x^{\frac{2}{3}}} \right)^{18}.\]Then \[\left(\frac{n}{m}\right)^{\frac{1}{3}}\]is:
JEE Main - 2024
JEE Main
Mathematics
Binomial theorem
Suppose \( 2 - p \), \( p \), \( 2 - \alpha \), \( \alpha \) are the coefficients of four consecutive terms in the expansion of \( (1 + x)^n \). Then the value of \( p^2 - \alpha^2 + 6\alpha + 2p \) equals
JEE Main - 2024
JEE Main
Mathematics
Binomial theorem
\(\text{Let } S = \{x \in \mathbb{R} : (\sqrt{3} + \sqrt{2})^x + (\sqrt{3} - \sqrt{2})^x = 10\}\)
.Then the number of elements in \( S \) is:
JEE Main - 2024
JEE Main
Mathematics
Logarithms
If \( 5f(x) + 4f\left(\frac{1}{x}\right) = x^2 - 2 \), for all \( x \neq 0 \), and \( y = 9x^2f(x) \), then \( y \) is strictly increasing in:
JEE Main - 2024
JEE Main
Mathematics
Linear Equations
If the length of the minor axis of an ellipse is equal to half of the distance between the foci, then the eccentricity of the ellipse is.
JEE Main - 2024
JEE Main
Mathematics
Ellipse
If the function $f(x) = \left(\frac{1}{x}\right)^{2x}; \, x>0$ attains the maximum value at $x = \frac{1}{c}$, then:
JEE Main - 2024
JEE Main
Mathematics
Relations and functions
If $\sin x = -\frac{3}{5}$, where $\pi<x<\frac{3\pi}{2}$, then $80(\tan^2 x - \cos x)$ is equal to:
JEE Main - 2024
JEE Main
Mathematics
Trigonometry
Let \( A = \{1, 3, 7, 9, 11\} \) and \( B = \{2, 4, 5, 7, 8, 10, 12\} \). Then the total number of one-one maps \( f: A \to B \), such that \( f(1) + f(3) = 14 \), is:
JEE Main - 2024
JEE Main
Mathematics
permutations and combinations
If the function \(f(x) = 2x^3 - 9ax^2 + 12a^2x + 1, \, a>0\) has a local maximum at \(x = \alpha\) and a local minimum at \(x = \alpha^2\), then \(\alpha\) and \(\alpha^2\) are the roots of the equation:
JEE Main - 2024
JEE Main
Mathematics
Maxima and Minima
Let \( A = \begin{bmatrix} 1 & 2 \\ 0 & 1 \end{bmatrix} \) and \[B = I + \text{adj}(A) + (\text{adj}(A))^2 + \dots + (\text{adj}(A))^{10}.\]Then, the sum of all the elements of the matrix \( B \) is:
JEE Main - 2024
JEE Main
Mathematics
Matrices and Determinants
Let \( A \) and \( B \) be two finite sets with \( m \) and \( n \) elements respectively. The total number of subsets of the set \( A \) is 56 more than the total number of subsets of \( B \). Then the distance of the point \( P(m, n) \) from the point \( Q(-2, -3) \) is:
JEE Main - 2024
JEE Main
Mathematics
Set Theory
If \( \log_e y = 3 \sin^{-1}x \), then \( (1 - x)^2 y'' - xy' \) at \( x = \frac{1}{2} \) is equal to:
JEE Main - 2024
JEE Main
Mathematics
Differential equations
The shortest distance between the lines
\[\frac{x - 3}{2} = \frac{y + 15}{-7} = \frac{z - 9}{5}\]and
\[\frac{x + 1}{2} = \frac{y - 1}{1} = \frac{z - 9}{-3}\] is:
JEE Main - 2024
JEE Main
Mathematics
Distance between Two Lines
The frequency distribution of the age of students in a class of 40 students is given below:
\(Age\)
15
16
17
18
19
20
No. of Students
5
8
5
12
x
y
If the mean deviation about the median is 1.25, then \(4x + 5y\) is equal to:
JEE Main - 2024
JEE Main
Mathematics
Statistics
The line passes through the centre of circle
\(x^2 + y^2 – 16x – 4y = 0\)
, it interacts with the positive coordinate axis at A & B. Then find the minimum value of OA + OB, where O is origin.
JEE Main - 2024
JEE Main
Mathematics
general equation of a line
In a paper there are 3 sections A, B and C which have 8, 6 and 6 questions each. A student have to attempt 15 questions such that they have to attempt at least 4 questions out of each sections. Then number of ways of attempting these questions are
JEE Main - 2024
JEE Main
Mathematics
Permutations
Let \( f: \mathbb{R} \to \mathbb{R} \) be defined as:
\(f(x) = \begin{cases} \frac{a - b \cos 2x}{x^2}, & x < 0, \\ x^2 + cx + 2, & 0 \leq x \leq 1, \\ 2x + 1, & x > 1. \end{cases}\)
If \( f \) is continuous everywhere in \( \mathbb{R} \) and \( m \) is the number of points where \( f \) is NOT differentiable, then \( m + a + b + c \) equals:
JEE Main - 2024
JEE Main
Mathematics
Functions
If the system of equations
\( x + \left( \sqrt{2} \sin \alpha \right) y + \left( \sqrt{2} \cos \alpha \right) z = 0 \)
\( x + \left( \cos \alpha \right) y + \left( \sin \alpha \right) z = 0 \)
\( x + \left( \sin \alpha \right) y - \left( \cos \alpha \right) z = 0 \)
has a non-trivial solution, then \( \alpha \in \left( 0, \frac{\pi}{2} \right) \) is equal to:
JEE Main - 2024
JEE Main
Mathematics
Matrices and Determinants
If \( 2 \tan^2 \theta - 5 \sec \theta = 1 \) has exactly 7 solutions in the interval
\(\left[ 0, \frac{n\pi}{2} \right],\)
for the least value of \( n \in \mathbb{N} \) then
\(\sum_{k=1}^{n} \frac{k}{2^k}\)
is equal to:
JEE Main - 2024
JEE Main
Mathematics
Derivatives of Functions in Parametric Forms
If the function
\(f(x) = \frac{\sin 3x + \alpha \sin x - \beta \cos 3x}{x^3},\)
\(x \in \mathbb{R} \), is continuous at \( x = 0 \), then \( f(0) \) is equal to:
JEE Main - 2024
JEE Main
Mathematics
Continuity and differentiability
If one of the diameters of the circle \( x^2 + y^2 - 10x + 4y + 13 = 0 \) is a chord of another circle \( C \), whose center is the point of intersection of the lines \( 2x + 3y = 12 \) and \( 3x - 2y = 5 \),then the radius of the circle \( C \) is
JEE Main - 2024
JEE Main
Mathematics
Coordinate Geometry
If \( A(3, 1, -1) \), \( B\left(\frac{5}{3}, \frac{7}{3}, \frac{1}{3}\right) \), \( C(2, 2, 1) \), and \( D\left(\frac{10}{3}, \frac{2}{3}, \frac{-1}{3}\right) \) are the vertices of a quadrilateral ABCD, then its area is:
JEE Main - 2024
JEE Main
Mathematics
Quadrilaterals
Number of ways of arranging 8 identical books into 4 identical shelves where any number of shelves may remain empty is equal to
JEE Main - 2024
JEE Main
Mathematics
permutations and combinations
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