解析 a) 2021+2022+2023+2020+2020+202+202+202+202+202+202+202+202+202+202+202+202+202+202=(2021+2029)+(2022+2028)+(2023+2021)+(2029)+2022020=4050+4050+4050+4050+2025=4050.4+2025=16200+2025=18225b) 30.40.50.60=(30.60)⋅(40.50)=1800.2000=3600000 ...
解析 a) 232-(581+132-331)=232-581-132+331=(232-132)-(581-331)=100-250=-150tmgdota-f0ratratratratriarciseacise=eicicici=1[12+(-57)]-[-57-(-12)]=12-57+57-12=0. 反馈 收藏
Tinh mot cach hop li:B=(-1)/9+8/7+(10)/9+(-29)/7 -29十7 相关知识点: 试题来源: 解析 http://gallery.fbcontent.cn/latex?decode=false&latex=%24%24%7BB%3D%5Cfrac%7B-1%7D%7B9%7D%2B%5Cfrac%7B8%7D%7B7%7D%2B%5Cfrac%7B10%7D%7B9%7D%2B%5Cfrac%7B-29%7D%7...
Tinh mot cach hop li:a)2021+2022+2023+2024+2025+2026+2027+2028+2029;b)30.40. 50. 60. 相关知识点: 试题来源: 解析 http://gallery.fbcontent.cn/latex?decode=false&latex=%24%24%5Cbegin%7Baligned%7D%20%26amp%3B%20%5Ctext%20%7B%20a)%20%7D%202021%2B2022%2B2023%2B2024%2B2025%2B2026...
百度试题 结果1 题目Bai 4. Tinh mot cach hop ly.a)A=4765+379-4755-378;b) B =(431+435+436)-(31+35+36). 相关知识点: 试题来源: 解析 Bài 4.a) .b) . 反馈 收藏
http://gallery.fbcontent.cn/latex?decode=false&latex=%24%24%5Cbegin%7Baligned%7D%20%26amp%3B%20251%2B(-144)%2B(-151)%2B(-216)%20%5C%5C%20%26amp%3B%20%3D251%2B(-151)%2B(-144)%2B(-216)%20%5Cquad%20%5Ctext%20%7B%20(t%C3%ADnh%20ch%E1%BA%A5t%20giao%20ho%C3%...
百度试题 结果1 题目Cau 1. Tinh mot cach hop li: 19, 42-34,26+30, 58+65,26. 相关知识点: 试题来源: 解析 Ta có:=(19.42+30.58)+(65.26-34.26)=50+31=81. 反馈 收藏
解析 Phương pháp giải:a) Áp dung công thức: a : c - b : c = (a-b):c.b) Áp dụng công thức: a : b : c = a : (b *c).Cách giải:∴(CE)/(BM)=(BM)/(MN)=(BC)/(AB)=(3√5+1)/(2*1+10)ω=ω_0sinω,ω_0t,0. ...
Ví du 4. Tinh giá tri cua bieu thú c sau mot cach hop li a)A=2/5⋅7/(11)+2/5⋅4/(11) b)B=7/(19)⋅1/3+7/(19)⋅2/3+(12)/(19) c)C=(12)/7⋅2/(11)+(12)/7⋅(15)/(11)-(12)/7⋅6/(11) d)D=((23)/(121)+9/7-5/(12))⋅(1/6-...
Cau 1. ( 0,5 diem)Thuc hien phep tinh mot cach hop ly: 19+19+...+19+75+75+...+75.25.s19 so 相关知识点: 试题来源: 解析 Thực hiện phép tính một cách hợp lý:(19+19+⋯+19+75+75+⋯+75)/(250)=19*25+75*19=19*(25+75)=19*100=1900 ...