JEE Main2019Math
Q.
Let where the function f satisfies f(x + y) = f(x) f(y) for all natural numbers x, y and f(1) = 2. Then the natural number ‘a’ is :
- A
2
- B
3
- C
16
- D
4
Solution
Let where the function f satisfies f(x + y) = f(x) f(y) for all natural numbers x, y and f(1) = 2. Then the natural number ‘a’ is :
2
3
16
4