Question 4.2

factorial UI do without using recursion. ch) Write a one-line R function named double factorial factorial of a single argument n (which can be assumed to be using recursion. erial2 that computes the de d to be a positive odd inte Mes the desit ger argument n that calculates the 44.2 Write an R function named Fib with a single positive integer argum value of the nth number in the Fibonacci sequence using recursion