So sánh:
a) 2437 và 910 . 275
b) 1515 và 813 . 1255
c) 7815 - 7812 và 7812 - 789
K
Khách
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Những câu hỏi liên quan
K
13
HM
2
21 tháng 10 2021
\(a,x\in\left\{15;20;...;70;75\right\}\\ b,x\in\left\{6;8;12\right\}\)
TA
21 tháng 10 2021
\(x\) \(⋮\) \(5\) và \(13 < x \) \(\le\) \(78\)
\(x = \) \(\left\{15;20;25;30;35;40;45;50;55;60;65;70;75\right\}\)
\(12\) \(⋮\) \(x\) và \(x > 4\)
\(x = \) \(\left\{6;12\right\}\)
NT
4
NT
%22%2F%3E%3Cpolyline%20fill%3D%22none%22%20points%3D%225%2C0%202%2C-6%200%2C-5%22%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20transform%3D%22translate(9.5%2C20.5)%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2221.5%22%20x2%3D%2233.5%22%20y1%3D%224.5%22%20y2%3D%224.5%22%2F%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2227.5%22%20y%3D%2219%22%3E5%3C%2Ftext%3E%3C%2Fsvg%3E)
và 4format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Cpolyline%20fill%3D%22none%22%20points%3D%2212%2C-16%2011%2C-16%205%2C0%202%2C-6%22%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20transform%3D%22translate(0.5%2C20.5)%22%2F%3E%3Cpolyline%20fill%3D%22none%22%20points%3D%225%2C0%202%2C-6%200%2C-5%22%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20transform%3D%22translate(0.5%2C20.5)%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2212.5%22%20x2%3D%2233.5%22%20y1%3D%224.5%22%20y2%3D%224.5%22%2F%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2223.5%22%20y%3D%2219%22%3E15%3C%2Ftext%3E%3Ctext%20font-family%3D%22math117e62166fc8586dfa4d1bc0e17%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2241.5%22%20y%3D%2219%22%3E%2B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2253.5%22%20y%3D%2219%22%3E4%3C%2Ftext%3E%3C%2Fsvg%3E)
và 8format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Cpolyline%20fill%3D%22none%22%20points%3D%2212%2C-16%2011%2C-16%205%2C0%202%2C-6%22%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20transform%3D%22translate(0.5%2C20.5)%22%2F%3E%3Cpolyline%20fill%3D%22none%22%20points%3D%225%2C0%202%2C-6%200%2C-5%22%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20transform%3D%22translate(0.5%2C20.5)%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2212.5%22%20x2%3D%2233.5%22%20y1%3D%224.5%22%20y2%3D%224.5%22%2F%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2223.5%22%20y%3D%2219%22%3E17%3C%2Ftext%3E%3Ctext%20font-family%3D%22math1da40657c9fece7e48d30af42d3%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2241.5%22%20y%3D%2219%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2253.5%22%20y%3D%2219%22%3E1%3C%2Ftext%3E%3C%2Fsvg%3E)
1
18 tháng 10 2021
a: \(11^{14}< 11^{15}\)
b: \(4^{300}=64^{100}\)
\(3^{400}=81^{100}\)
mà 64<81
nên \(4^{300}< 3^{400}\)
NN
14 tháng 9 2021
a, Có 3 = (3
)
= 9
và 2
= (2
)
= 8
=> 3
> 2
b, Có 6 = (6
)
= 36
=> 6
> 12
26 tháng 1 2023
37,37 x 5959,59 = 37 x 1,01 x 59 x 101,01 = 37 x 59 x 1,01 x 101,01
59,59 x 3737,37 = 59 x 1,01 x 37 x 101,01 = 37 x 59 x 1,01 x 101,01
=> 37,37 x 5959,59 = 59,59 x 3737,37
Kick mik nha
5
TM
20 tháng 2 2021
a) 536 và 1124
Ta có: 536= (53)12=12512 (1)
1124=(112)12=12112 (2)
Từ (1) và (2) => 536>1124
tương tự.....
20 tháng 2 2021
Đáp án là :
câu 20 :625 < 1257
câu 21 :536 > 1124
câu 22 :32n < 23n
câu 23 :523 < 6.522
câu 24 :1124 <19920
câu 25 :399 > 112
và 5
và 9
và 10
15 tháng 9 2021
\(b,\left(\sqrt{27}\right)^2=27>25=5^2\Rightarrow\sqrt{27}>5\\ c,6^2=36< 41=\left(\sqrt{41}\right)^2\Rightarrow6< \sqrt{41}\\ d,\left(\sqrt{79}\right)^2=79< 81=9^2\Rightarrow\sqrt{79}< 9\\ e,7^2=49>47=\left(\sqrt{47}\right)^2\Rightarrow7>\sqrt{47}\\ f,\left(\sqrt{123}\right)^2=123>100=10^2\Rightarrow\sqrt{123}>10\)
7815 - 7812 =783 x (7812-789)
Mà 7812 - 789=780 x (7812 - 789)
Mà 783 x (7812 - 789)>780 x (7812 - 789)
vì 2 vế đều có chung thừa số thứ 2 Thừa số thứ 1 của vế 1 lớn hơn thừa số thứ 2 của vế 2 nên 7815 - 7812 > 7812 - 789.
a)2437=(35)7=335
910.275=(32)10.(32)5=320.315=335
Vì 335=335 nên 2437=910.275
b)1515=(3.5)15=315.515
813.1255=(34)3.(53)5=312.515
Vì 15>12 nên 315>312 hay 315.515>312.515
Vậy 1515>813.1255
c)7815-7812=783(7812-789)
7812-789=780(7812-789)
Vì 3>0 nên 783>780 hay 783.(7812-789)>780.(7812-789)
Vậy7815-7812>7812-789