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TIFR Mathematics 2024 | Part A | Question: 7
Let $p$ be a prime. Which of the following statements is true? There exists a noncommutative ring with exactly $p$ elements There exists a noncommutative ring with exactly $p^{2}$ elements There exists a noncommutative ring with exactly $p^{3}$ elements None of the remaining three statements is correct
Let $p$ be a prime. Which of the following statements is true?There exists a noncommutative ring with exactly $p$ elementsThere exists a noncommutative ring with exactly ...
admin
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admin
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Jan 19
Others
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TIFR Mathematics 2024 | Part A | Question: 8
Consider the sequence $\left\{a_{n}\right\}$ for $n \geq 1$ ... $\lim _{n \rightarrow \infty} n^{2} a_{n}$ exists and equals 1
Consider the sequence $\left\{a_{n}\right\}$ for $n \geq 1$ defined by\[a_{n}=\lim _{N \rightarrow \infty} \sum_{k=n}^{N} \frac{1}{k^{2}} .\]Which of the following statem...
admin
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TIFR Mathematics 2024 | Part A | Question: 9
Let $f: \mathbb{R} \rightarrow \mathbb{R}$ be a differentiable function that is a solution to the ordinary differential equation \[ f^{\prime}(t)=\sin ^{2}(f(t))(\forall t \in \mathbb{R}), \quad f(0)=1 . \] ... is neither bounded nor periodic $f$ is bounded and periodic $f$ is bounded, but not periodic None of the remaining three statements is correct
Let $f: \mathbb{R} \rightarrow \mathbb{R}$ be a differentiable function that is a solution to the ordinary differential equation\[f^{\prime}(t)=\sin ^{2}(f(t))(\forall t ...
admin
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admin
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TIFR Mathematics 2024 | Part A | Question: 10
Let $B$ denote the set of invertible upper triangular $2 \times 2$ matrices with entries in $\mathbb{C}$, viewed as a group under matrix multiplication. Which of the following subgroups of $B$ is the normalizer of itself in $\text{B}$ ...
Let $B$ denote the set of invertible upper triangular $2 \times 2$ matrices with entries in $\mathbb{C}$, viewed as a group under matrix multiplication. Which of the foll...
admin
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admin
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TIFR Mathematics 2024 | Part A | Question: 11
What is the least positive integer $n>1$ such that $x^{n}$ and $x$ are conjugate, for every $x \in S_{11}$? Here, $S_{11}$ denotes the symmetric group on $11$ letters. $10$ $11$ $12$ $13$
What is the least positive integer $n>1$ such that $x^{n}$ and $x$ are conjugate, for every $x \in S_{11}$? Here, $S_{11}$ denotes the symmetric group on $11$ letters.$10...
admin
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Jan 19
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TIFR Mathematics 2024 | Part A | Question: 12
Consider the following statements: $\text{(A)}$ Let $G$ be a group and let $H \subset G$ be a subgroup of index 2 . Then $[G, G] \subseteq H$. $\text{(B)}$ Let $G$ be a group and let $H \subset G$ be a subgroup that contains the commutator subgroup ... false $\text{(A)}$ is true and $\text{(B)}$ is false $\text{(A)}$ is false and $\text{(B)}$ is true
Consider the following statements:$\text{(A)}$ Let $G$ be a group and let $H \subset G$ be a subgroup of index 2 . Then $[G, G] \subseteq H$.$\text{(B)}$ Let $G$ be a gro...
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TIFR Mathematics 2024 | Part A | Question: 13
For any symmetric real matrix $A$, let $\lambda(A)$ denote the largest eigenvalue of $A$. Let $S$ be the set of positive definite symmetric $3 \times 3$ real matrices. Which of the following assertions is correct? There exist $A, B \in S$ ... $\lambda(A+B)=\max (\lambda(A), \lambda(B))$ None of the remaining three assertions is correct
For any symmetric real matrix $A$, let $\lambda(A)$ denote the largest eigenvalue of $A$. Let $S$ be the set of positive definite symmetric $3 \times 3$ real matrices. Wh...
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158
TIFR Mathematics 2024 | Part A | Question: 14
Let $\theta \in(0, \pi / 2)$. Let $T: \mathbb{R}^{2} \rightarrow \mathbb{R}^{2}$ be the linear map which sends a vector $v$ to its reflection with respect to the line through $(0,0)$ and $(\cos \theta, \sin \theta)$. Then the ... $\left(\begin{array}{cc}\cos \theta & \sin \theta \\ -\sin \theta & \cos \theta\end{array}\right)$
Let $\theta \in(0, \pi / 2)$. Let $T: \mathbb{R}^{2} \rightarrow \mathbb{R}^{2}$ be the linear map which sends a vector $v$ to its reflection with respect to the line thr...
admin
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TIFR Mathematics 2024 | Part A | Question: 15
For a polynomial $f(x, y) \in \mathbb{R}[x, y]$, let $X_{f}=\left\{(a, b) \in \mathbb{R}^{2} \mid f(a, b)=1\right\} \subset \mathbb{R}^{2}$. Which of the following statements is correct? If $f(x, y)=x^{2}+4 x y+3 y^{2}$, ... then $X_{f}$ is compact If $f(x, y)=x^{2}-4 x y-y^{2}$, then $X_{f}$ is compact None of the remaining three statements is correct
For a polynomial $f(x, y) \in \mathbb{R}[x, y]$, let $X_{f}=\left\{(a, b) \in \mathbb{R}^{2} \mid f(a, b)=1\right\} \subset \mathbb{R}^{2}$. Which of the following statem...
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TIFR Mathematics 2024 | Part A | Question: 16
What is the number of distinct subfields of $\mathbb{C}$ isomorphic to $\mathbb{Q}[\sqrt[3]{2}]$? $1$ $2$ $3$ Infinite
What is the number of distinct subfields of $\mathbb{C}$ isomorphic to $\mathbb{Q}[\sqrt[3]{2}]$?$1$$2$$3$Infinite
admin
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Jan 19
Others
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TIFR Mathematics 2024 | Part A | Question: 17
Let $\mathbb{F}_{3}$ denote the finite field with 3 elements. What is the number of one dimensional vector subspaces of the vector space $\mathbb{F}_{3}^{5}$ over $\mathbb{F}_{3}$? $5$ $121$ $81$ None of the remaining three options
Let $\mathbb{F}_{3}$ denote the finite field with 3 elements. What is the number of one dimensional vector subspaces of the vector space $\mathbb{F}_{3}^{5}$ over $\mathb...
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TIFR Mathematics 2024 | Part A | Question: 18
For a positive integer $n$, let $a_{n}, b_{n}, c_{n}, d_{n}$ be the real numbers such that \[ \left(\begin{array}{ll} 1 & 1 \\ 1 & 0 \end{array}\right)^{n}=\left(\begin{array}{ll} a_{n} & b_{n} \\ c_{n} & ... the following numbers equals $\lim _{n \rightarrow \infty} a_{n} / b_{n}$ ? $1$ $e$ $3 / 2$ None of the remaining three options
For a positive integer $n$, let $a_{n}, b_{n}, c_{n}, d_{n}$ be the real numbers such that\[\left(\begin{array}{ll}1 & 1 \\1 & 0\end{array}\right)^{n}=\left(\begin{array}...
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Jan 19
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TIFR Mathematics 2024 | Part A | Question: 19
Consider the complex vector space $V=\{f \in \mathbb{C}[x] \mid f$ has degree at most 50 , and $f(i x)=-f(x)$ for all $x \in \mathbb{C}\}$. Then the dimension of $V$ equals $50$ $25$ $13$ $47$
Consider the complex vector space$V=\{f \in \mathbb{C}[x] \mid f$ has degree at most 50 , and $f(i x)=-f(x)$ for all $x \in \mathbb{C}\}$.Then the dimension of $V$ equals...
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TIFR Mathematics 2024 | Part A | Question: 20
Let $S$ denote the set of sequences $a=\left(a_{1}, a_{2}, \ldots\right)$ of real numbers such that $a_{k}$ equals 0 or 1 for each $k$. Then the function $f: S \rightarrow \mathbb{R}$ defined by \[ f\left(\ ... }}{10}+\frac{a_{2}}{10^{2}}+\ldots \] is injective but not surjective surjective but not injective bijective neither injective nor surjective
Let $S$ denote the set of sequences $a=\left(a_{1}, a_{2}, \ldots\right)$ of real numbers such that $a_{k}$ equals 0 or 1 for each $k$. Then the function $f: S \rightarro...
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#self doubt
Can someone please explain how to calculate TLB size?
Can someone please explain how to calculate TLB size?
Dknights
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Dknights
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Jan 19
Operating System
operating-system
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Madeeasy test 45, question 48
Can anyone please explain the statements II and III?
Can anyone please explain the statements II and III?
VinayBhojwani
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VinayBhojwani
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Jan 15
Mathematical Logic
2-marks
engineering-mathematics
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Byjus Mock Test
I am unable to understand the language of the question , can someone help me??
I am unable to understand the language of the question , can someone help me??
Dadu
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Dadu
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Jan 15
Digital Logic
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multiplexer
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HEY ,Bad Request Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit. Apache/2.4.41 (Ubuntu) Server at aptitude.gateoverflow.in Port 443
mih7r
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mih7r
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Jan 15
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madeeasy
Proof for 2nd equality?
Proof for 2nd equality?
nihal_chourasiya
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nihal_chourasiya
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Jan 15
Theory of Computation
made-easy-test-series
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madeeasy
Proof for 2nd equality?
Proof for 2nd equality?
nihal_chourasiya
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nihal_chourasiya
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Jan 15
Theory of Computation
made-easy-test-series
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Made easy
In it’s solution how are they obtaining x with the given operation? Should we not have 1 more register to keep x separate?
In it’s solution how are they obtaining x with the given operation? Should we not have 1 more register to keep x separate?
Mrityudoot
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Mrityudoot
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Jan 14
CO and Architecture
made-easy-test-series
test-series
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TIFR CSE 2024 | Part B | Question: 1
Consider the following three functions defined for all positive integers $n \geq 0$ ... . Only $\text{(ii)}$ and $\text{(iii)}$ are true All of $\text{(i), (ii)}$, and $\text{(iii)}$ are true.
Consider the following three functions defined for all positive integers $n \geq 0$.\[\begin{array}{l}f(n)=|\sin (n)+n|, \\g(n)=n, \\h(n)=|\sin (n)| .\end{array}\]Which o...
admin
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admin
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Jan 13
Algorithms
tifr2024
algorithms
asymptotic-notation
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TIFR CSE 2024 | Part B | Question: 6
The four nucleotides in $\text{DNA}$ are called $\text{A, C, G}$, and $\text{T}$. Consider the following languages over the alphabet $\{\mathrm{A}, \mathrm{C}, \mathrm{G}$, and $\mathrm{T}\}$. \[ \begin{array}{l} L_{1}=\left\{(\mathrm{AC})^{n}(\mathrm{GT})^{n} ... $L_{1}$ and $L_{3} \cdot$ Only $L_{1}$ and $L_{2}$. All three of $L_{1}, L_{2}, L_{3}$.
The four nucleotides in $\text{DNA}$ are called $\text{A, C, G}$, and $\text{T}$. Consider the following languages over the alphabet $\{\mathrm{A}, \mathrm{C}, \mathrm{G}...
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TIFR CSE 2024 | Part B | Question: 7
Consider the following algorithm that takes as input a positive integer $n$. if (n == 1) { return "Neither prime nor composite." } m=2 while (m < n) { if (m divides n ){ return "Composite." } m=m+1 } return "Prime. ... at most $\left\lceil n^{1 / 9}\right\rceil$ times only if $p, q, r$ are distinct primes or distinct prime powers.
Consider the following algorithm that takes as input a positive integer $n$.if (n == 1) { return "Neither prime nor composite." } m=2 while (m < n) { if (m divides n ){ r...
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admin
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TIFR CSE 2024 | Part B | Question: 8
In the following pseudocode, assume that for any pair of integers $x \leq y$, the function random ( $\mathrm{x}, \mathrm{y})$ produces an integer uniformly chosen from the set $\{x, x+1, \ldots, y\}$. n=9 for (i=1 to ... equal probability, and does not print any other output. The output is always $987654321$. The output may not be a permutation of $123456789$.
In the following pseudocode, assume that for any pair of integers $x \leq y$, the function random ( $\mathrm{x}, \mathrm{y})$ produces an integer uniformly chosen from th...
admin
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TIFR CSE 2024 | Part B | Question: 10
Arun has a non-empty subset $\text{S}$ of the numbers $\{1,2,3, \ldots, 1000\}$. Bela wants to find any number $\text{x}$ in Arun's set $\text{S}$. To do this, Arun and Bela decide to play a game which proceeds in rounds. In each round, Bela ... rounds will Bela need to find out some $\text{x}$ in Arun's set $\text{S}$? $9$ $10$ $11$ $1023$ $1024$
Arun has a non-empty subset $\text{S}$ of the numbers $\{1,2,3, \ldots, 1000\}$. Bela wants to find any number $\text{x}$ in Arun's set $\text{S}$.To do this, Arun and Be...
admin
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TIFR CSE 2024 | Part B | Question: 11
Let $\mathbb{C}$ denote the set of complex numbers and let $k$ be a positive integer. Given a non-zero univariate polynomial $f(x)$ with coefficients in $\mathbb{C}$ and an $a \in \mathbb{C}$, we say that $a$ is a zero of $f$ ... larger than $d$ as well. The number of distinct zeroes in $\mathbb{C}$ of $f$ of multiplicity $k$ is equal to $d$.
Let $\mathbb{C}$ denote the set of complex numbers and let $k$ be a positive integer. Given a non-zero univariate polynomial $f(x)$ with coefficients in $\mathbb{C}$ and ...
admin
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admin
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TIFR CSE 2024 | Part B | Question: 12
In the $n$-queens completion problem, the input is an $n \times n$ chess board with queens on some squares, and the goal is to determine if there is a way to place more queens so that the total number of queens is $n$ and no two queens attack each other (two queens are ... $\text{(iii),(iv) and (v)}$. Only $\text{(i), (iii) and (iv)}$.
In the $n$-queens completion problem, the input is an $n \times n$ chess board with queens on some squares, and the goal is to determine if there is a way to place more q...
admin
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TIFR CSE 2024 | Part B | Question: 13
Suppose we are given a graph $\text{G=(V, E)}$ with non-negative edge weights $\left\{w_{e}\right\}_{e \in E}$. Consider the following problems: P1: Finding a minimum spanning tree of $\text{G}$. P2: Finding a maximum spanning tree of $\text{G}$. P3: Finding a ... $\text{P1 but not P2,P3, P4}$. $\text{P1,P2,P3 but not P4}$. $\text{P1, P4 but not P2, P3}$.
Suppose we are given a graph $\text{G=(V, E)}$ with non-negative edge weights $\left\{w_{e}\right\}_{e \in E}$.Consider the following problems:P1: Finding a minimum spann...
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TIFR CSE 2024 | Part B | Question: 14
For an undirected graph $G$, let $\bar{G}$ refer to the complement (a graph on the same vertex set as $G$, with $(i, j)$ as an edge in $\bar{G}$ if and only if it is not an edge in $G$ ). Consider the following statements. $G$ has ... (i) is equivalent to (ii) and (iv). (i) is equivalent to (ii) and (v) None of the five statements are equivalent to each other.
For an undirected graph $G$, let $\bar{G}$ refer to the complement (a graph on the same vertex set as $G$, with $(i, j)$ as an edge in $\bar{G}$ if and only if it is not ...
admin
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admin
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Jan 13
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