Let ltmath gt ltmrow gt ltmo gt' lt/mo gt ltmi gto lt/mi gt ltmo gt' lt/mo gt
0 views · Published 22 June 2018 · 6:55 · Indexed 28 September 2026
Channel: Doubtnut · 2018 · Education
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 `\'o\'` be a binary operation on the set `Q_0` of all non-zero rational numbers defined by `a\\ o\\ b=(a b)/2` , for all `a ,\\ b in Q_0` . Show that `\'o\'` is both commutative and associate (ii) Find the identity element in `Q_0` (iii) Find the invertible elements of `Q_0` . === DOWNLOAD DOUBTNUT TO ASK ANY MATH QUESTION === https://doubtnut.app.link/hyaEcuWGyP ==== 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)
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