Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Engineering Mathematics Set Theory & Algebra Boolean Algebra
Let ({a, b}, *) be a semigroup, where a * a = b.
(A) a * b = b * a
(B) b * b = b
Choose the most appropriate answer from the options given below:
1
(A) only true
2
(B) only true
3
Both (A) and (B) true
4
Neither (A) nor (B) true