Pouvez- vous m'aider avec cette question svp 9. The 1st, 3rd and 13th terms of an arithmetic progression are also the Ist, 2nd and 3rd terms respectively of a g

Pouvez- vous m'aider avec cette question svp

9. The 1st, 3rd and 13th terms of an arithmetic progression are also the Ist, 2nd and 3rd terms respectively of a geometric progression. The first term of each progression is 3. Find the common difference of the arithmetic progression and the common ratio of the geometric progression.​