Final answer:
To find the value of f(4), we can use the given recursive formula, which states that f(n) = f(n-1) - 1. Since we know that f(1) = 3, we can substitute the values and work backwards. Therefore, the value of f(4) is 0, so the correct option is (a) 0.
Step-by-step explanation:
To find the value of f(4), we can use the given recursive formula, which states that f(n) = f(n-1) - 1. Since we know that f(1) = 3, we can substitute the values and work backwards:
f(1) = 3
f(2) = f(1) - 1 = 3 - 1 = 2
f(3) = f(2) - 1 = 2 - 1 = 1
f(4) = f(3) - 1 = 1 - 1 = 0
Therefore, the value of f(4) is 0, so the correct option is (a) 0.