5 find the sums to n tems 1. If tz=20,t6 = 160 Find St.​

Question

5 find the sums to n tems
1. If tz=20,t6 = 160 Find St.​

in progress 0
Evelyn 2 months 2021-10-09T18:01:06+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-10-09T18:02:24+00:00

    Answer:

    n(n+1) /2 is the formula then you can easily solve

Leave an answer

Browse
Browse

18:9+8+9*3-7:3-1*13 = ? ( )