JEE Main 2026 Mathematics question
The number of strictly increasing functions from the set to the set such that for , is equal to:
Answer: (4)
Solution
Case f(1)=2: ; f(1)=3: ; f(1)=4: . Total = 21+6+1=28.
The number of strictly increasing functions from the set to the set such that for , is equal to:
Case f(1)=2: ; f(1)=3: ; f(1)=4: . Total = 21+6+1=28.