Looping

Question

How to make this Loop with for i in range simple code for beginner to learn
A. 1+2+3+4+5+6+7... = Result
B. 1/2 + 2/3 + 3/4 + 4/5 + 5/6 +7/8...= Result
C. -2/1 + 4/3 + -6/5 + 8/7 + -10/9 + 12/11 +.... = Result
i need to know about looping code and tell me about all function you place it at your code, bcs I need to know all function you use...
Thank Youu...

Answer 1

@Gordie thank you for your advice, and yes in python