Answered: python help Q5: Compose Write the…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Q5: Compose

Write the procedure composed, which takes in procedures f and g and outputs a new procedure. This new procedure takes in a number x and outputs the result of calling f on g of x.

(define (composed f g)

'YOUR-CODE-HERE

)

Q6: Remove

Implement a procedure remove that takes in a list and returns a new list with all instances of item removed from lst. You may assume the list will only consist of numbers and will not have nested lists.

Hint: You might find the filter procedure useful.

(define (remove item lst)

'YOUR-CODE-HERE

)

;;; Tests

(remove 3 nil)

; expect ()

(remove 3 '(1 3 5))

; expect (1 5)

(remove 5 '(5 3 5 5 1 4 5 4))

; expect (3 1 4 4)

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