Viết chương trình nhập số tự nhiên n và tính các giá trị sau: a. Tính tổng 1+2+…+2n

b. Tính tổng các số tự nhiên
c. Tính tổng các số tự nhiên
d. Tính tổng các ước số thực sự của n (không tính n)

e. Tính tổng 1^2+2^2+3^2+...+n^2
Bài tập về ngôn ngữ lập trình Python ạ

Ramon is graphing the function  f(x) = 3(4)x. he begins by plotting the initial value. which graph represents his initial step?

Allison and her group have completed the data entry for their spreadsheet project. they are in the process of formatting the data to make it easier to read and understand. the title is located in cell a5. the group has decided to merge cells a3: a7 to attempt to center the title over the data. after the merge, allison points out that it is not centered and looks bad. where would the title appear if allison unmerged the cells in an attempt to fix the title problem?

Select the correct answer. andre was recently hired by an organization to check for system vulnerabilities. he is supposed to exploit these vulnerabilities and create a report on the extent of damage to which the system was susceptible. what position does andre hold in this organization? a. information security analyst b. information assurance manager c. penetration tester d. network security engineer e. chief information security officer