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This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Discrete Mathematics knowledge and support exam preparation. Choose a topic below to get started.
1. |
Consider the set B* of all strings over the alphabet set B = {0, 1} with the concatenation operator for strings ________ |
A. | does not form a group |
B. | does not have the right identity element |
C. | forms a non-commutative group |
D. | forms a group if the empty string is removed from |
Answer» B. does not have the right identity element | |
2. |
A set of representatives of all the cosets is called _________ |
A. | transitive |
B. | reversal |
C. | equivalent |
D. | transversal |
Answer» E. | |
3. |
The elements of a vector space form a/an ____________ under vector addition. |
A. | abelian group |
B. | commutative group |
C. | associative group |
D. | semigroup |
Answer» B. commutative group | |
4. |
An isomorphism of a group onto itself is called ____________ |
A. | homomorphism |
B. | heteromorphism |
C. | epimorphism |
D. | automorphism |
Answer» E. | |
5. |
A function is defined by f(x)=2x and f(x + y) = f(x) + f(y) is called _____________ |
A. | isomorphic |
B. | homomorphic |
C. | cyclic group |
D. | heteromorphic |
Answer» B. homomorphic | |
6. |
Lagrange’s theorem specifies __________ |
A. | the order of semigroup is finite |
B. | the order of the subgroup divides the order of the finite group |
C. | the order of an abelian group is infinite |
D. | the order of the semigroup is added to the order of the group |
Answer» C. the order of an abelian group is infinite | |
7. |
a * H = H * a relation holds if __________ |
A. | H is semigroup of an abelian group |
B. | H is monoid of a group |
C. | H is a cyclic group |
D. | H is subgroup of an abelian group |
Answer» E. | |
8. |
a * H is a set of _____ coset. |
A. | right |
B. | left |
C. | sub |
D. | semi |
Answer» C. sub | |