defence exam Coast Guard Navik GD (General Duty) 02/2025 Mock Test Series Mathematics Relations and Functions Types of Functions
A = {24, 36, 48} और B = {12, 18, 24}, f : A → B. निम्नलिखित में से कौन सा फलन न तो एकैकी है और न ही आच्छादक है जहाँ f : N → N?
1
f = {(24, 12), (36, 18), (48, 24)}
2
s = {(24, 24), (36, 12), (48, 18)}
3
g = {(24, 18), (36, 24), (48, 12)}
4
h = {(24, 12), (36, 18), (48, 12)}