奇数,偶数,等比数列,等差数列,项数,公差,公比,积,和,差,首项,末项,加,减,乘,除 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 odd number,even number,geometric series,arithmetic series,terms,common difference,common ratio,multiplication,sum,difference,first term;last term ,add,...
奇数,偶数,等比数列,等差数列,项数,公差,公比,积,和,差,首项,末项,加,减,乘,除 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 odd number,even number,geometric series,arithmetic series,terms,common difference,common ratio,multiplication,sum,difference,first term;last term ,add,...