當(dāng)一個(gè)正整數(shù)是a的b次方的時(shí)候它被叫作perfect power(明明應(yīng)該是叫perfect square嘛,這道題怎么像中國(guó)人出的啊,嚴(yán)重鄙視),而a和b都是正整數(shù),并且b大于或等于什么東西(你肯定打漏了).比如:32和125是PERFECT POWER因?yàn)?2==2^5 ,125=5^3.
一個(gè)遞增的數(shù)列是:
2,3,5,6,7,10,.
這個(gè)數(shù)列包括所有不是perfect power的數(shù)字.那么,這個(gè)數(shù)列里的第1000個(gè)數(shù)字的各個(gè)數(shù)位的和加起來是?(比如說123的的數(shù)字和就是6這個(gè)意思.)
(A)50 (B)48 (C)52 (D)54 (E)56
英語翻譯
英語翻譯
A positive integer is called a perfect power if it can be written in the form a^b (a的b次方),where a and b are positive integers with b>=(大于或等于).for example,32 and 125 are perfect powers because 32=2^5 and 125=5^3
The increasing sequence
2,3,5,6,7,10,.
consists of all positive integers which are not perfect powers.the sum of the digits of the 1000th number in this sequence is
(A)50 (B)48 (C)52 (D)54 (E)56
我在國(guó)外讀書..中國(guó)人出的?
A positive integer is called a perfect power if it can be written in the form a^b (a的b次方),where a and b are positive integers with b>=(大于或等于).for example,32 and 125 are perfect powers because 32=2^5 and 125=5^3
The increasing sequence
2,3,5,6,7,10,.
consists of all positive integers which are not perfect powers.the sum of the digits of the 1000th number in this sequence is
(A)50 (B)48 (C)52 (D)54 (E)56
我在國(guó)外讀書..中國(guó)人出的?
英語人氣：136 ℃時(shí)間：2020-02-04 11:40:28
優(yōu)質(zhì)解答
我來回答
類似推薦
猜你喜歡
- 1鋅銅原電池,硫酸電解質(zhì)組成的原電池中,為啥鋅和硫酸不直接反應(yīng),而要到銅級(jí)得電子?
- 2碳酸鈣是一種難溶于水的強(qiáng)電解質(zhì),在常溫下它的溶解度是10＾（－3）g.那么常溫時(shí)CA2CO3溶液最大的質(zhì)量分?jǐn)?shù)是_________;最大的物質(zhì)的量濃度是________.根據(jù)上述數(shù)據(jù)和鹽類水解的特點(diǎn) ,對(duì)于一般難溶鹽_____(需要或不需要
- 3初中英語語法 名詞講解及練習(xí)
- 4一個(gè)農(nóng)場(chǎng)共養(yǎng)雞、鴨、鵝2464只,其中雞的只數(shù)是鴨的4倍,鴨的只數(shù)是鵝的3倍,三種家禽各幾只?
- 5一本書,已看頁數(shù)與未看頁數(shù)的比是1:4,如果再看80頁,已看頁數(shù)與未看頁數(shù)的比是1:2,這本書有多少頁?如
- 6反意疑問句,如果前面說 you look very beautiful,后面應(yīng)是什么?
- 75-6分之5等于多少 （分?jǐn)?shù)）
- 8a big trip,going on,my friend,i am造句
- 9英語翻譯
- 10l get up at 9 o'clock.l play with my sister.l watch tv in the afternoon.l go to bed at 10 o'clock.
- 11即使是配角 也想保護(hù)著不讓你受委屈 用英語怎么說
- 12如同的近義詞是什么?