Math, asked by BrainlyHelper, 1 year ago

Question 18 Find the sum to n terms of the sequence, 8, 88, 888, 8888…

Class X1 - Maths -Sequences and Series Page 193

Answers

Answered by HarshitJain111

9

ANS 80/81(10^n-1) - 8/9n

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Answered by abhi178

4

see attachment ,
answer = 8[10^(n+1) - 9n - 10]/81

Attachments:

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