in Scheme

8. Write a higher-order function twice that takes as a parameter a function of one argument and returns a function that represents the application of that function to its argument twice. Given the usual definition of the square function, what function is (twice (twice square))? 8. Write a higher-order function twice that takes as a parameter a function of one argument and returns a function that represents the application of that function to its argument twice. Given the usual definition of the square function, what function is (twice (twice square))