Find the sum of the geometric sequence 3 + 9 + 27 + 81.

Question

Find the sum of the geometric sequence 3 + 9 + 27 + 81.

in progress 0
Thành Công 5 years 2021-07-23T23:50:29+00:00 1 Answers 22 views 0

Answers ( )

  1. thienthanh
    0
    2021-07-23T23:51:33+00:00
    Reply

    Answer:

    120

    Step-by-step explanation:

    3+9= 12

    12+27= 39

    39+81= 120

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )