1. Given each relation write down the properties that the relation has. If the relation does not have a particular property, give an example showing why.   a) R = \{(a,a), (a,c), (b,b), (c,b), (c,c)\}R={(a,a),(a,c),(b,b),(c,b),(c,c)}   2.The relation on any collection of sets where XX is related to YY if |X|=|Y|∣X∣=∣Y∣

Q: Please written by computer source The following relation is an extract from a restaurant…

A: Introduction : This question involves analyzing a relation from a restaurant point-of-sale (POS)…

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Q: A relation R on a set S, defined as x R y if and only if y R x. This is an example of? a) reflexive…

A:

Q: define functions

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Q: How many minimal keys this relation has? A B C DE F G 1 4 4 4 2 4 3 2 5 4 4- 2. 4- 2. 3. 4. 2. 3. 4-…

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Q: Consider the following functional dependencies for a relation R(A, B, C, D) A -> (B, C, D), (A, D)…

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Q: Describe how you would deal with the relation type M:N using a practical example.

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A: The answer is

Q: Н.W: Al/ Which of these relations on {0, 1, 2, 3 } are equivalence relations, why? а) R1- {(0, 0),…

A:

Q: 2 Consider the following functional dependencies for the given relation. R={A, B, C, D, E, F) AB->CD…

A: Dear Student, The answer to your question is given below -

Q: Given the relations U and S below, use ordered pair notation to express the relation So U. a b b

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Q: What does it mean to be related? How do you define a relation's properties?

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Q: For the following number patterns write the recurrence relation i) 5, 8.2, 11.4, 14.6, …. ii) 400,…

A: Recurrence relation for above are:      i)  an  = an-1 + 3.2            ;  n >= 1     a0  = 5

Q: In the following, assume that A = {a,b,c,d} and that R : A ↔ A. Determine whether each relation is…

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Q: What precisely do you mean when you say that a dependence is transitive?

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Q: Let R be a relation on A = (0, 1,7,9). If (7,9) ER, what must NOT be an element of R for R to be…

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Q: Suppose that R is the following relation on the set A = {1,2,3,4}: R = A × A – {(1, 1), (2, 2), (3,…

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Q: Regular entity type is transformed to a relation.

A: To be determine: Regular entity type is transformed to a relation.

Q: Let R be the relation R = {(a, b) | a < b} on the set of integers. Find a) R-!. b) R.

A: a)R-1

Q: Consider the following Relation instance of R1(A, B, C, D): A D Null Null 1 Null Null 1 1 Null 1 2 4…

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Q: For each of the following pairs of expressions, give instances of relations thatshow the expressions…

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Q: 7. Write an algorithm that receives as input the matrix of a relation R and produces as output the…

A: Answer :-

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Q: lation R on a set S, defined as x R y if and only if y R x. This is an example of? a) reflexive…

A: Introduction: A relation R on a set S, defined as x R y if and only if y R x. This is an example…

Q: Relations 2. Given: Relation R1 = {(a,a), (a,b), (c,b), (c,e), (d,b), (d,e), (e,e)} %3D Relation R2…

A: Relation R1 = {(a,a), (a,b), (c,b), (c,e), (d,b), (d,e), (e,e)} Relation R2 = {(q1,q2), (q2,q3),…

Q: Consider a relation (p, q, r, s, t, u, v) with functional dependencies as given below: p➜q r➜s,t…

A: Given : A relation (p, q, r, s, t, u, v) with functional dependencies as given below:p ⇒ qr ⇒ s, ts…

Q: a = sqrt (log ( sqrt ( x + y ) ) )

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A: A relation R is reflexive if and only if (a, a) ∈ R , ∀a ∈ A   Here,  A = {a, b, c}   Therefore, (a,…

Q: database Assume that you have the following relation; R(a,b,c) a   b  c ---------- 1  A   F 2…

A: Given: database Assume that you have the following relation; R(a,b,c) a   b  c ---------- 1  A   F…

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Q: write this in relation algebra:  SELECT s.sname FROM student s, reservation r WHERE s.sid!=r.sid

A: SQL statement to relational algebra is written in step 2.

Q: 2. Let A = {0, 1}. Determine all relations on A.

A: Answer: All relations of A are listed below.  R1={} R2={(0,0),(0,1),(1,0),(1,1)} R3={(0,0)}…

Q: Given the relations U and T below, use ordered pair notation to express the relation To U. ToU =…

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Q: What does it mean to be related? How do you define a relation's properties?

A: Introduction: A relation is a table that has two dimensions. It is divided into rows (tuples) and…