1+4+3+8+5+12
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北京时间3月13日,湖人主场迎战尼克斯。全场战罢,尼克斯112-108力克湖人。
全场比赛,尼克斯前锋朱利叶斯-兰德尔首发出战36分钟,投篮24中11,三分12中3,罚球11中8,砍下33分8篮板5助攻,得分并列全场最高。
在上一场对阵快船24中5、近三战61中18后,兰德尔本场强势反弹。首节比赛,兰德尔打满12分钟,投篮9中5,砍下18分4篮板。
(NBA官网)
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都烁德29621+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26等于多少 -
古虾雯13653638065 ______[答案] 1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26 =(1+26)*13 =351
都烁德29621+2+3+4+5+6+7+8+9+10+11+12.+100=( ) -
古虾雯13653638065 ______[答案] 1+2+3+4+5+6+7+8+9+10+11+12.+100=( 5050) 1+100=101 2+99=101 3+98=101 ………… 50+51=101 一个有50个101, 所以1+2+3+4+5+6+7+8+9+10+11+12.+100=( 5050)
都烁德29621+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20=??? 得多少? -
古虾雯13653638065 ______ 因为,1+20 = 21 ,2+19 = 21 ,……10+11 = 21 ,所以,1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20= (1+20)*(20÷2)= 210
都烁德2962简便 算法1+2+3+4+5+6+7+8+9+10+12+13+14+15+161+17+18+19+20+21+22+23+24+25+26+27+28+29+30 -
古虾雯13653638065 ______[答案] 1+2+3+4+5+6+7+8+9+10+12+13+14+15+161+17+18+19+20+21+22+23+24+25+26+27+28+29+30 =(1+30)*(30÷2) =31*15 =465
都烁德29621+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18.+9999=? -
古虾雯13653638065 ______[答案] 这是一个等差数列,公差为1. 利用等差数列公式: Sn=n(a1+an)/2 或Sn=a1*n+n(n-1)d/2 代入可得: Sn=9999*(1+9999)/2 =49995000 即结果为49995000.
都烁德29621+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+29+30+31+32+33+34+………100=多少 -
古虾雯13653638065 ______[答案] =(1+100)+(2+99)+……+(50+51) =101+101+……+101 =101*50 =5050
都烁德29621+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20 找规律算一算 -
古虾雯13653638065 ______[答案] 1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20 =(1+20)*20÷2 =210 公式:(首项+末项)*项数÷2 不然再解释,就只能设结果为s s=1 +2 +3 +4 +5 +6 +7 +8 +9 +10+11+12+13+14+15+16+17+18+19+20 s=20+19+18+17+16+15+14+...
都烁德29621+2+3+4+5+6+7+8+9+10+11++12+13+14+15+16+17+18+19+20+21+22+23+24=? -
古虾雯13653638065 ______[答案] 1+2+3+4+5+6+7+8+9+10+11++12+13+14+15+16+17+18+19+20+21+22+23+24 = (25*26)/2 -25 = 325-25 = 300
都烁德29621+1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19.+100 -
古虾雯13653638065 ______[答案] 1+1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19.+100 =1+(1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19.+100) =1+(1+100)*100/2 =1+5050 =5051
都烁德29621+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25的简便算法 -
古虾雯13653638065 ______[答案] =(1+25)+(2+24)+(3+23)+.+(12+14)+13 =26X12+13 =325