profile-img
Deepak Patra posted an Question
September 26, 2021 • 16:44 pm 30 points
  • IIT JAM
  • Mathematics (MA)

Zs. let bethe set olrationals and define a binary operation on q by a*b=ut+b-ab. then (a) () is a group (b) (s,") is agroup for somc subset s q |h, (c} (9.*) is

ZS. Let bethe set olrationals and define a binary operation on Q by a*b=ut+b-ab. Then (a) () is a group (b) (S,") is agroup for somc subset S Q |H, (c} (9.*) is not associative (d) (.*) has no'identity

1 Answer(s) Answer Now
  • 0 Likes
  • 1 Comments
  • 0 Shares
  • Anonymous User best-answer

    options A is wrong because inverse of 1 dose not exist. options c is wrong bcz Q is associated options D is wrong because O is an identity elements which is in Q so options B is right for this check attachment taking S=Q* which is subset of Q

    cropped2281088076798669820.jpg
    cropped5979634835981091851.jpg
    cropped8364848741435784813.jpg
whatsapp-btn

Do You Want Better RANK in Your Exam?

Start Your Preparations with Eduncle’s FREE Study Material

  • Updated Syllabus, Paper Pattern & Full Exam Details
  • Sample Theory of Most Important Topic
  • Model Test Paper with Detailed Solutions
  • Last 5 Years Question Papers & Answers