Part 1. Create a function pow_two():
it takes one argument and returns that number squared (that number times itself).
pow_two <- function(x){ return() }
# Part 2. Create a function sum_abs(), that takes two arguments and returns the sum of the absolute values of both arguments.
sum_abs <- function(y,z){ return() } #
Part 3. Write two test cases for each function to make sure they are working properly.
For example: pow_two(2) == 4 sum_abs(-1, -3) == 4