1
If you are facing any issue, then join our Telegram group or channel and let us know.Join Channel Join Group!

MCQ s Quiz

VIGYAN
Please wait 0 seconds...
Scroll Down and click on Go to Link for destination
Congrats! Link is Generated

1. The number of all one-one functions from set A = {1, 2, 3} to itself is
a) 2
b) 6
c) 3
d) 1



2. A relation R from A to B is an arbitrary subset of
a) A × B
b) B × A
c) A × A
d) B × B



3. A relation R in a set A is said to be an equivalence relation, if R is
a) symmetric only
b) reflexive only
c) transitive only
d) All of these



4. A1 coincides with the set of all integers in Z which are related to ...A..., A2 coincides with the set of all integers which are related to ...B... and A3 coincides with the set of all integers in Z which are related to ...C... . Here, A, B and C are respectively
a) one, zero, two
b) zero, one, two
c) two, one, zero
d) one, two, zero



5. If (a, b) ÎR, where R is a relation, then
a) (a, b) is not an ordered pair
b) a = b only
c) ab = 1 only
d) a is related to b under the relation R



6. The relation R defined in the set A = {1, 2, 3, 4, 5, 6, 7} by R = {(a, b) : both a and b are either odd or even}. Then, R is
a) symmetric
b) transitive
c) an equivalence relation
d) reflexive



7. The relation R in the set {1, 2, 3, ..., 13, 14} defined as R = {(x, y) : 3x - y = 0} is
a) reflexive
b) transitive
c) symmetric
d) None of these



8. Let R be the relation in the set Z of all integers defined by R = {(x, y) : x - y is an integer}. Then R is
a) reflexive
b) symmetric
c) transitive
d) an equivalence relation



9. If R is the relation defined in the set {1, 2, 3, 4, 5, 6} as R = {(a, b) : b = a + 1}, then R is
a) reflexive
b) symmetric
c) transitive
d) None of these



10. The relation R in the set {1, 2, 3} given by R = {(1, 2), (2, 1)} is
a) reflexive
b) symmetric
c) transitive
d) reflexive and symmetric



The function f : N → N given by $latex \displaystyle f\left( x \right)=\left\{ {\begin{array}{*{20}{c}} {x+1,\text{ if x is odd}} \\ {x-1,\text{ if x is even}} \end{array}} \right.$ is
(a) injective
(b) surjective
(c) bijective
(d) many-one


Post a Comment

Cookie Consent
NextPrayas serve cookies on this site to analyze traffic, remember your preferences, and optimize your experience.
Oops!
It seems there is something wrong with your internet connection. Please connect to the internet and start browsing again.
AdBlock Detected!
We have detected that you are using adblocking plugin in your browser.
The revenue we earn by the advertisements is used to manage this website, we request you to whitelist our website in your adblocking plugin.
Site is Blocked
Sorry! This site is not available in your country.
Do you have any doubts? chat with us on WhatsApp
Hello, How can I help you? ...
Click me to start the chat...