R Studio I need to write a function that is named equation that takes X and Y as the arguments. Set the default value of Y to 10. Within the body of the function, check if X is numeric and Y is non-zero. If it is, calculate and return the result of X^5 / Y. If any of the two values are zero, return a message stating "Invalid Input". Apply the function with X = 12 and X = 7, Y = 0..