A. Write the function remove_negative(Lst) to remove the negative elements and return the

 

positive elements from a list.

Example:

Lst = [-1, 0,2,-4,12]

#Should return list with positive elements

Lst = [ 0,2,12]

B. Write a program to duplicate all the elements of a list.

Example:

Lst=[1,2,3]

#Should return

Lst=[1,1,2,2,3,3]

C. Write a program to check if an element of a list is a prime number. If it is prime, return True

or else return False.

Example:

List1=[3,17,9,2,4,8]

#Should display

Lsit1=[True, True, False, False, False, False]

D. Write the function remove_fi rst_last(list) to remove the fi rst and last element from a list.

Example:

List1=[10,20,30,40,50]

removeFirstAndLast(Lis1)

#should return

[20, 30, 40]

E. Write a function Extract_Even(List) to return all even numbers from a list.

Example:

List1=[1,2,3,4,5,6]

Extract_Even(List1)

#should return  [2,4,6]