Let * be a binary operation on ltmath gt ltmrow gt ltmsub gt ltmi gtQ lt/mi gt ltmn gt

9 views · Published 22 June 2018 · 5:34 · Indexed 21 September 2026

Channel: Doubtnut · 2018 · Education

Watch on YouTube

This is the Solution of Question From RD SHARMA book of CLASS 12 CHAPTER BINARY OPERATIONS This Question is also available in R S AGGARWAL book of CLASS 12 You can Find Solution of All Question From RD SHARMA and R S AGGARWAL book from class 6-12 on our app DOUBTNUT for Free



#rdsharmasolution #BINARYOPERATIONS #rdsharmaclass12 #class12 #cbse #rdsharma #doubtnut

==== QUESTION TEXT ====

Let * be a binary operation on `Q_0` (set of non-zero rational numbers) defined by `a*b=(3a b)/5` for all `a ,\\ b in Q_0` . Show that * is commutative as well as associative. Also, find the identity element, if it exists.

=== DOWNLOAD DOUBTNUT TO ASK ANY MATH QUESTION ===

https://doubtnut.app.link/UtyyQcWGyP

==== SCORE 100% WITH DOUBTNUT ====

Doubtnut App has video solutions of ALL the NCERT questions from Class 6 to 12 (including IIT JEE). You can also ask any Math question and get a video solution for FREE from a library of more than 1 Lakh Math Videos



==== FOLLOW US ON FACEBOOK ====

Doubtnut PAGE:
https://www.facebook.com/doubtnut

DOUBTNUT IIT JEE Group:
https://www.facebook.com/groups/251747588948573

==== WATCH DAILY LIVE CLASSES ON YOUTUBE ====

5:30 PM - Class 9

6:30 PM - Class 10

7:15 PM - Class 11

8:15 PM - Class 12

9:15 PM - Class 13 (DROPPERS)

More from this channel