Register
Filter

Questions by Dhoomketu

0 votes
4 answers
1
Gradeup question doubt
$x(x+x'y)z(x+y+z)$ simplifies to (A)$x+x'y$ (B)$x+y+z$ (C)$xyz$ (D)$xz$ Answer is (D) But I can not obtain $xz$ only. My solutions is as follows: x(x+x'y)z(x+y+z) =(x+y)(xz+yz+z) =xz+xyz+xz+xyz+yz+yz =xz+yz+xyz =xz(1+y)+yz =xz+yz Can anyone tell where I made mistake?
$x(x+x'y)z(x+y+z)$ simplifies to(A)$x+x'y$(B)$x+y+z$(C)$xyz$(D)$xz$Answer is (D)But I can not obtain $xz$ only.My solutions is as follows:x(x+x'y)z(x+y+z)=(x+y)(xz+yz+z)=...
2 votes
3 answers
2
Grade up question doubt
The given equation simplifies to which of the following? $(A+B)'(ABC)'(A'C)'$ (A)$A'B'C'$ (B)$ABC$ (C)$A'B'C'$ (D)$A+B+C$ Answer is (A) They have written in the explanation as follows: (A+B)'(ABC)'(A'C) ... +A'C]'..... I have doubt here... =[A+B+ABC+A'C]' =[A+B+A'C]' =[A+B+C]'
The given equation simplifies to which of the following?$(A+B)'(ABC)'(A'C)'$(A)$A'B'C'$(B)$ABC$(C)$A'B'C'$(D)$A+B+C$Answer is (A)They have written in the explanation as f...
0 votes
2 answers
3
Theory of computation - Closure Property
Cfl is closed under intersection with regular language. Then resultant languages will be regular or cfl ? Let X is cfl Y is regular language L=X intersection Y Then L is what?
Cfl is closed under intersection with regular language.Then resultant languages will be regular or cfl ?Let X is cflY is regular language L=X intersection YThen L is what...
0 votes
0 answers
4
Databases - Superkeys
How to calculate super key of any relation? Pls explain with example.
How to calculate super key of any relation?Pls explain with example.