math ce ex. function

🎓 學業台標準及測試

[匿名]

2011-01-05 3:51 am

show steps plz
It is given that the value of a+ar+ar^2+...is a/(1-r). Find the value of

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更新1:

how is the ans. related to the information given? If the question asks to give ans. based on information given, how to ans it?

回答 (2)

STEVIE-G™

2011-01-05 4:10 am

✔ 最佳答案

As follows:

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2011-01-04 21:29:48 補充：
I've updated my ans, have a look~

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myisland8132

2011-01-05 6:08 am

Well done !

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