Tính rồi thử lại
8192 : 32
K
Khách
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
CM
Cao Minh Tâm
30 tháng 12 2017
Đúng(0)
Những câu hỏi liên quan
21 tháng 10 2015
1, 65,6 : 32 = 2,05.
2, 338 : 65 = 5,2.
3, 30,24 : 4,8 = 6,3.
4, 12 : 6,25 = 1,92.
5, 24,44 : 5,2 = 4,7.
6, 25,2453 : 24,51 = 1,03.
7, 0,039 : 0,78 = 0,05.
8, 19 : 3,8= 5.
14 tháng 3 2017
Đặt A = 1 + 2 + 4 + 8 + 16 + … + 4096 + 8192
Ta có: A = 20 + 21 + 22 + 23 + 24 + … + 212 + 213 (1)
Nhân cả hai vế của (1) cho 2, ta được: 2A = 21 + 22 + 23 + 24 + 25 + … + 213 + 214 (2)
Lấy (2) - (1), ta được: 2A - A = 21 + 22 + 23 + 24 + 25 + … + 213 + 214 - (20 + 21 + 22 + 23+ 24 + … + 212 + 213)
A = 21 - 20 + 22 - 21 + 23 - 22 + 24 - 23 + 25 - 24 + … + 213 - 212 + 214 - 213
A = 214 - 20
A = 16384 - 1
A = 16383
NT
0
NT
1
5 tháng 4 2019
3675:35=105 THỬ LẠI: 105.35=3675
81,92:32=2,56 THỬ LẠI : 2,56.32=81,92
20219:37=CÂU NÀY RA KẾT QUẢ DƯ RA BN
97,65:21,7=4,5 THỬ LẠI : 4,5.21,7=97,65
K CHO MK NHA
CÓ GÌ SAI THÌ MONG BN BỎ QUA NHA
KG
14 tháng 4 2016
3675 : 35 = 105
81,92 : 32 = 2,56
20219 : 37 = 546,4594595
97,65 : 21,7 = 4,5
PT
1
23 tháng 4 2018
a,3675:35=105
thử lạ:105x35=3675
20219:37=546,459
thử lại:546,459x37=20219
b,81,92:32=2,56
thử lại:2,56x32=81,92
97,65:21,7=4,5
thử lại:4,5x21,7=97,65
NT
2
7 tháng 12 2018
Đặt A = 1 + 2 + 4 + ... + 8192
A = 1 + 2 + 22 + ... + 213
=> 2A = 2 + 22 + 23 + ... + 214
=> 2A - A = ( 2 + 22 + 23 + ... + 214 ) - ( 1 + 2 + 22 + ... + 213 )
<=> A = 214 - 1
<=> A = 16383
Vậy A = 16383
7 tháng 12 2018
16383
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