(a)Find the sum ot infinity of the geometric series
1/2+(1/2)^2+(1/2)^3+....
(b)Let S be the sum to infinity of the series
1+3(1/2)+5(1/2)^2+7(1/2)^3+.....
(i)Show that S-1/2S is equal to the sum to infinity of the series
1+2(1/2)+2(1/2)^2+2(1/2)^3+.....
(ii)Hence find the value of S.
answers:(a)1 (b)(ii)6 pls.
sum to infinitety??
2007-06-12 6:01 pm
回答 (1)
2007-06-12 6:30 pm
參考: My Maths knowledge
收錄日期: 2021-04-12 19:55:32
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