Login

Remember

Google Login
Register

PYQ's
Questions
Hot!
Unanswered
Tags
Categories
Viva Notes
Ask Question
PDF Notes

Number of binary operations on the set (1, 2} having 1 as the identity element is (A) 10 (B) 16 (C) 20 (D) 8

0 votes

134 views

asked Oct 22, 2022 in Chapter 1 Relations and Functions by HelloWorld (8.1k points)
edited Jun 29, 2023

Number of binary operations on the set (1, 2} having 1 as the identity element is

(A) 10

(B) 16

(C) 20

(D) 8

Your comment on this question:

Please read the guide .

Your name to display (optional):

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Anti-spam verification:

To avoid this verification in future, please log in or register.

Your answer

Please answer the question in detail

Your name to display (optional):

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

Anti-spam verification:

To avoid this verification in future, please log in or register.

1 Answer

0 votes

answered Oct 22, 2022 by HelloWorld (8.1k points)
selected Jun 29, 2023 by HelloWorld

Best answer

(B) 16

Let * be a binary operation.

There are two elements in the set {1, 2}.

∴ Number of binary operations is 24 = 16.

Your comment on this answer:

Please read the guide .

Your name to display (optional):

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Anti-spam verification:

To avoid this verification in future, please log in or register.

Related questions

0 votes

1 answer 185 views

The number of binary operations that can be defined on a set of 2 elements is (a) 8 (b) 4 (c) 16 (d) 64

asked Jul 10, 2022 in Discuss by Doubtly (98.9k points)

0 votes

1 answer 174 views

Is * defined on the set {1,2,3,4,5} by a * b = L.C.M. of a and b as a binary operation. Justify your answer.

asked Oct 22, 2022 in Chapter 1 Relations and Functions by HelloWorld (8.1k points)

0 votes

1 answer 160 views

Let * be the binary operation on N given by a * b = L.C.M. of a and b. (i) Find 5 * 7 and 20 * 16. (ii) Is * commutative

asked Oct 22, 2022 in Chapter 1 Relations and Functions by HelloWorld (8.1k points)

0 votes

1 answer 594 views

R. Perform the following operations : a. 3.971 × 107 + 1.98 × 104 ; b. 1.05 × 10-4 - 9.7 × 10-5; c. 4.11 × 10-3 + 8.1×10-4; d. 2.12 × 106 - 3.5 × 105

asked Apr 22, 2021 in Chapter 2: Introduction to Analytical Chemistry by Doubtly (98.9k points)

11th2q4

0 votes

1 answer 124 views

Define a binary operation * on the set {0, 1, 2, 3, 4, 5} as a * b =

asked Oct 22, 2022 in Chapter 1 Relations and Functions by HelloWorld (8.1k points)

0 votes

1 answer 199 views

The ratio of emissive power of perfectly blackbody at 1327° C and 527 °C is (A) 4:1 (B) 16 : 1 (C) 2 : 1 (D) 8 : 1

asked May 30, 2022 in Chapter3:Kinetic Theory of Gases and Radiation by nehapatil (3.2k points)

Doubtly is an online community for engineering students, offering:

Free viva questions PDFs
Previous year question papers (PYQs)
Academic doubt solutions
Expert-guided solutions

Get the pro version for free by logging in!

Most popular tags

jeemain geography-10th engineering physics semester 5 web computing

5.7k questions

5.1k answers

108 comments

561 users

Send feedback
About
faq
Linkedin
Terms of service
disclaimer
copyright
privacy policy
comments
XML Sitemap

Doubtly

...