Mathematics · Group Theory
The set of integers &mathbb;Z forms a group under the binary operation * defined as:
- 1a * b = a + b + 2✓
- 2a * b = a + b + ab
- 3a * b = a - b
- 4a * b = a + 2b
Correct answer
a * b = a + b + 2
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Preparing for Mathematics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Group Theory?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Mathematics · Group Theory