Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Engineering Mathematics Set Theory & Algebra Groups
Z पूर्णांकों का समूह है, समूह बनाता है यदि ∗ है:
1
∗(a, b) = a + b + 2
2
∗(a, b) = 2a + b
3
∗(a, b) = (a + b)/2
4
∗(a, b) = a2 + b