1
GATE CSE 2009
MCQ (Single Correct Answer)
+2
-0.6
For the compositive table of a cyclic group shown below GATE CSE 2009 Discrete Mathematics - Set Theory & Algebra Question 34 English

Which one of the following choices is correct?

A
a, b are generators
B
b, c are generators
C
c, d are generators
D
d, a are generators
2
GATE CSE 2007
MCQ (Single Correct Answer)
+2
-0.6
How many different non-isomorphic Abelian groups of order 4 are there?
A
2
B
3
C
4
D
5
3
GATE CSE 2007
MCQ (Single Correct Answer)
+2
-0.6
Consider the set of (column) vectors defined by $$X = \,\{ \,x\, \in \,{R^3}\,\left| {{x_1}\, + \,{x_2}\, + \,{x_3} = 0} \right.$$, where $${x^T} = \,{[{x_1}\, + \,{x_2}\, + \,{x_3}]^T}\} .$$ Which of the following is TRUE?
A
$$\left\{ {{{\left[ {1,\, - 1,\,0} \right]}^T},\,{{\left[ {1,\,\,0 ,- 1,\,} \right]}^T}} \right\}$$ is a basis for the subspace X.
B
$$\left\{ {{{\left[ {1,\, - 1,\,0} \right]}^T},\,{{\left[ {1,\,\,0,\, - 1,\,} \right]}^T}} \right\}$$ is a linearly independent set, but it does not span X and therefore is not a basis of X.
C
X is not a subspace of $${R^3}$$.
D
None of the above.
4
GATE CSE 2007
MCQ (Single Correct Answer)
+2
-0.6
Consider the following Hasse diagrams.
GATE CSE 2007 Discrete Mathematics - Set Theory & Algebra Question 40 English 1
GATE CSE 2007 Discrete Mathematics - Set Theory & Algebra Question 40 English 2
GATE CSE 2007 Discrete Mathematics - Set Theory & Algebra Question 40 English 3
GATE CSE 2007 Discrete Mathematics - Set Theory & Algebra Question 40 English 4

Which all of the above represent a lattice?

A
(i) and (iv) only
B
(ii) and (iii) only
C
(iii) only
D
(i), (ii) and (iv) only
GATE CSE Subjects
Software Engineering
Web Technologies
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12