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0 votes
1 answer
1
Database
Given R (ABCDE) A-->BC,CD->E B->D E->A CONVERT GIVEN INTO 1NF 2NF 3NF AND THEN BCNF PLEASE VERIFY :)
Given R (ABCDE)A >BC,CD->E B->D E->ACONVERT GIVEN INTO 1NF 2NF 3NF AND THEN BCNF PLEASE VERIFY :)
0 votes
1 answer
2
Database
Given R (ABCDE) FDS ARE A-->BC,C-->DE, D-->E R1(ABCD) R2(DE) FIND WHETHER ITS DECOMPOSITION IS VALID OR NOT and Fd preserving too
Given R (ABCDE)FDS ARE A >BC,C >DE, D >ER1(ABCD) R2(DE)FIND WHETHER ITS DECOMPOSITION IS VALID OR NOT and Fd preserving too
1 votes
1 answer
3
Aptitude
A with the help of a son can do a work in 10days . They start together and after 6 days his son left the work . Then remaining work will be done by A in 8 days . Then A alone would do work in how many days ? verify please :)
A with the help of a son can do a work in 10days . They start together and after 6 days his son left the work . Then remaining work will be done by A in 8 days . Then A a...
2 votes
1 answer
4
Test-made easy
0 votes
1 answer
5
Kenneth Rosen Edition 6th Exercise 6.6 Question 26 (Page No. 457)
How many derangements of (1 2 3 4 5 6 ) end with integer 1 2 and 3 in some order ?
How many derangements of (1 2 3 4 5 6 ) end with integer 1 2 and 3 in some order ?
2 votes
1 answer
6
Kenneth Rosen Edition 6th Exercise 6.6 Question 3 (Page No. 456)
How many solution does the equation x1+x2+x3=13 have where x1 x2 and x3 are non negative less than 6 ?
How many solution does the equation x1+x2+x3=13 have where x1 x2 and x3 are non negative less than 6 ?
0 votes
0 answers
7
Kenneth Rosen Edition 6th Exercise 5.5 Question 44 b (Page No. 381)
. In how many ways can a dozen books be placed on four distinguishable shelves if no two books are the same, and the positions of the books on the shelves matter?
. In how many ways can a dozen books be placed on four distinguishable shelvesif no two books are the same, and the positions of the books on the shelves matter?
5 votes
1 answer
8
Combinatorics
A proffesor writes 40 discrete mathematics true/false question . of the statements in these question 17 are true . if the question can be positioned in any order . then how many diff key are possible ?
A proffesor writes 40 discrete mathematics true/false question . of the statements in these question 17 are true . if the question can be positioned in any order . then h...
1 votes
1 answer
9
Counters design
Design a counter using D flip flops that goes through state 0 1 2 4 0 . The undesired (unused ) states must always goes to zer0 (000) on the next clock pulse .
Design a counter using D flip flops that goes through state 0 1 2 4 0 . The undesired (unused ) states must always goes to zer0 (000) on the next clock pulse .
1 votes
1 answer
10
Logic basic
Express the quantification ∃!xP(x) using Universal , Existential Quantification and Logical Connectives
Express the quantification ∃!xP(x) using Universal , Existential Quantification and Logical Connectives
0 votes
1 answer
17
Logic basic
Let T (x,y) mean that student x like cuisine y where the domain for x consists off all students at your school and domain for y consists of all cuisines. Express the following in English statement ∀x∀y∃y((x!=z)-----> ∼(T(x,y) ⋀ T(z,y)))
Let T (x,y) mean that student x like cuisine y where the domain for x consists off all students at your school and domain for y consists of all cuisines. Express the foll...
1 votes
1 answer
18
Logic Basic
How will you translate following expression into English statement Let C(x,y) mean that student x is enrolled in class y where the domain x consists of all students in your class and domain y consists of all class beign given at your school ∃x∃y∀z((x!=y) ⋀ (C(x,z)-->C(y,z)))
How will you translate following expression into English statement Let C(x,y) mean that student x is enrolled in class y where the domain x consists of all students in yo...
1 votes
1 answer
20
Logic basic
What is truth value of the following statement ? ∃!x P(x) --->∼ ∀xP(x)
What is truth value of the following statement ?∃!x P(x) ->∼ ∀xP(x)
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