The security issues of the database are set up by the

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The tree like structure of records in a database in-

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Ankit Asked Oct 10, 2023

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What is a database?

Ankit Asked Oct 10, 2023

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LEELADHAR YADAV Asked Aug 13, 2023

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Let L be the set of all straight lines in the Euclidean plane. Two lines $\ell_1$ and $\ell_2$ are said to be related by the relation R if $\ell_1$ is parallel to $\ell_2$. Then prove that R is equivalence relation.

LEELADHAR YADAV Asked Aug 13, 2023

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Dev Yaduvanshi Asked Dec 9, 2023

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What are the sustainable aviation fuel (SAF) targets set by the Indian government?

Dev Yaduvanshi Asked Dec 9, 2023

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Chandan Asked Sep 11, 2023

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CH3-CO-CH3 (g) $\rightleftharpoons$ CH3-CH3 (g)+ CO (g) Initial pressure of CH3COCH3 is 100 mm. When equilibrium is set up, mole fraction of CO (g) is 1 / 3. Hence value of K_p for given reaction is :

Chandan Asked Sep 11, 2023

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AnjaliYadav Asked Jul 22, 2022

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The first Law Commission was set up in —

AnjaliYadav Asked Jul 22, 2022

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Sanjeev Yadav ji Asked Dec 4, 2023

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A body thrown vertically upward rises up to a height h, and comes back to the initial position. Calculate (a) the total distance travelled by the body, (b) the displacement of the body.

Sanjeev Yadav ji Asked Dec 4, 2023

by Sanjeev Yadav ji

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LEELADHAR YADAV Asked Sep 25, 2023

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The capital of IMF is made up by the contribution of–

LEELADHAR YADAV Asked Sep 25, 2023

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Dev Yaduvanshi Asked Dec 7, 2023

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Name one organization founded by Dr. B.R. Ambedkar to address issues faced by untouchables?

Dev Yaduvanshi Asked Dec 7, 2023

by Dev Yaduvanshi

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Chandan Asked Sep 12, 2023

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Is * defined on the set {1,2,3,4,5} by a*b = l.c.m. of a and b binary operation?

Chandan Asked Sep 12, 2023

by Chandan

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Chandan Asked Sep 12, 2023

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If the binary operation * on the set of integers Z, is defined by a*b = a + 3b^2, then find the value 2 * 4 .

Chandan Asked Sep 12, 2023

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LEELADHAR YADAV Asked Sep 3, 2023

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Let $f(x)=x(2-x), 0 \leq x \leq 2$. If the definition of ' $f$ ' is extended over the set, $R-[0,2]$ by $f(x-2)=f(x)$, then prove that ' $f$ ' is a periodic function of period 2 .

LEELADHAR YADAV Asked Sep 3, 2023

by LEELADHAR YADAV

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LEELADHAR YADAV Asked Aug 22, 2023

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If the binary operation * on the set Z of integers is defined by $a * b=a+b-5$, then write the identity element for the operation * in Z.

LEELADHAR YADAV Asked Aug 22, 2023

by LEELADHAR YADAV

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LEELADHAR YADAV Asked Aug 22, 2023

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Consider the binary operation * on the set $\{1,2,3,4,5\}$ defined by $a^* b=\min \{a, b\}$. Write the operation table of the operation *.

LEELADHAR YADAV Asked Aug 22, 2023

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LEELADHAR YADAV Asked Aug 22, 2023

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Let * be a binary operation on set of integers $I$, defined by $a{ }^* b=2 a+b-3$. Find the value of $3 * 4$

LEELADHAR YADAV Asked Aug 22, 2023

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LEELADHAR YADAV Asked Aug 22, 2023

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If * be a binary operation on set of integers I defined by $a{ }^* b=3 a+4 b-2$, find the value of 4 * 5 .

LEELADHAR YADAV Asked Aug 22, 2023

by LEELADHAR YADAV

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LEELADHAR YADAV Asked Aug 22, 2023

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Show that the relation S in the set $A=\{x \in Z: 0 \leq x \leq 12\}$ given by $S=\{(a, b): a, b \in Z,|a-b|$ is divisible by 4$\}$ is an equivalence relation. Find the set of all elements related to 1 .

LEELADHAR YADAV Asked Aug 22, 2023

by LEELADHAR YADAV

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LEELADHAR YADAV Asked Aug 22, 2023

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Show that the relation S in the set $A=\{x \in Z: 0 \leq x \leq 12\}$ given by $S=\{(a, b): a, b \in Z,|a-b|$ is divisible by 4$\}$ is an equivalence relation. Find the set of all elements related to 1 .

LEELADHAR YADAV Asked Aug 22, 2023

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LEELADHAR YADAV Asked Aug 22, 2023

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Let $Z$ be the set of all integers and R be the relation on Z defined as $R=\{(a, b): a, b \in Z$, and $(a-b)$ is divisible by 5} Prove that $R$ is an equivalence relation.

LEELADHAR YADAV Asked Aug 22, 2023

by LEELADHAR YADAV

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LEELADHAR YADAV Asked Aug 16, 2023

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Let L denote the set of all straight lines in a plane. Let a relation $R$ be defined by $\alpha R \beta \Leftrightarrow \alpha \perp \beta, \alpha, \beta \in L$. The R is

LEELADHAR YADAV Asked Aug 16, 2023

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John Michael Asked Aug 12, 2023

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Each observation of a raw data whose variance is $\sigma^2$, is multiplied by n. What is the variance of the new set?

John Michael Asked Aug 12, 2023

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LEELADHAR YADAV Asked Aug 11, 2023

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Show that addition, subtraction and multiplication are binary operations on R, but division is not a binary operation on R. Further, show that division is a binary operation on the set R. of non zero real numbers.

LEELADHAR YADAV Asked Aug 11, 2023

by LEELADHAR YADAV

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Dev Yaduvanshi Asked Dec 9, 2023

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Who holds the position of Chief Executive at the UK Health Security Agency?

Dev Yaduvanshi Asked Dec 9, 2023

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LEELADHAR YADAV Asked Aug 13, 2023

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Consider a relation R defined on set of square matrices A of order 2 satisfying $A^2=I$. If A, B are two such matrices then relation R is defined as $(A, B) \in R \Rightarrow(A B)^{\top}=A^{\top} B^{\top}$. Prove that relation R is reflexive and symmetric.

LEELADHAR YADAV Asked Aug 13, 2023

by LEELADHAR YADAV

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Chandan Asked Sep 12, 2023

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Is the binary operation * defined on set N, given by $a * b=\frac{a+b}{2}$ for all $a, b \in Q$, commutative?

Chandan Asked Sep 12, 2023

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Chandan Asked Sep 12, 2023

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Show that the relation R in the set (1,2,3) given by R={(1,1),(2,2),(3,3),(1,2),(2,3)} is reflexive but neither symmetric nor transitive.

Chandan Asked Sep 12, 2023

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Chandan Asked Sep 12, 2023

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Show that the relation R in the set {1,2,3}, given by R={(1,2),(2,1)} is not reflexive.

Chandan Asked Sep 12, 2023

by Chandan

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LEELADHAR YADAV Asked Aug 22, 2023

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State the reason for the relation R in the set (1,2,3) given by R=(1,2),(2,1) not to be transitive.

LEELADHAR YADAV Asked Aug 22, 2023

by LEELADHAR YADAV

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LEELADHAR YADAV Asked Aug 22, 2023

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Show that the relation $S$ defined on the set $N \times N$ by $(a, b) S(c, d) \Rightarrow a+d=b+c$ is an equivalence relation.

LEELADHAR YADAV Asked Aug 22, 2023

by LEELADHAR YADAV

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LEELADHAR YADAV Asked Aug 22, 2023

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Prove that the relation R in the set A=(1,2,3,4,5) given by $R=\{(a, b):|a-b|$ is even $\}$, is an equivalence relation.

LEELADHAR YADAV Asked Aug 22, 2023

by LEELADHAR YADAV

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LEELADHAR YADAV Asked Aug 21, 2023

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Show that the relation R defined by (a, b) R(c, d) $\Rightarrow a+d=b+c$ on the set N x N is an equivalence relation.

LEELADHAR YADAV Asked Aug 21, 2023

by LEELADHAR YADAV

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LEELADHAR YADAV Asked Aug 16, 2023

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Let R be a relation on the set N be defined by $\{(x, y) \mid x, y \in N, 2 x+y=41\}$. Then $R$ is

LEELADHAR YADAV Asked Aug 16, 2023

by LEELADHAR YADAV

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LEELADHAR YADAV Asked Aug 15, 2023

59 views

In the set A={1,2,3,4,5} a relation R is defined by $R=\{(x, y) \mid x, y \in A$ and $x<y\}$. Then R is

LEELADHAR YADAV Asked Aug 15, 2023

by LEELADHAR YADAV

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0 Votes

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LEELADHAR YADAV Asked Aug 13, 2023

34 views

Let * be a binary operation on the set R defined by $a{ }^* b=a+b+a b, a, b \in R$. Solve the equation $2^*\left(3^{\star} x\right)=7$

LEELADHAR YADAV Asked Aug 13, 2023

by LEELADHAR YADAV

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0 Votes

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LEELADHAR YADAV Asked Aug 13, 2023

109 views

Let R be a relation over the set N × N and it is defined by $(a, b) R(c, d) \Rightarrow a+d=b+c$. Then prove that R is equivalence relation

LEELADHAR YADAV Asked Aug 13, 2023

by LEELADHAR YADAV

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0 Votes

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