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There have been 23 items by pinokio119 (Search limited from 17-05-2020)

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chứng minh rằng $a^{2}+b^{2}+c^... in Bất đẳng thức và cực trị Started by pinokio119, 25-03-2013	14 replies 9127 views	KietLW9 29-03-2021
Tìm max của $a^{2}+b^{2}+c^... in Bất đẳng thức và cực trị Started by pinokio119, 16-03-2013 mrmathcskh0110	6 replies 4362 views	iloveyoubebe 01-02-2019
0<ab+bc+ca-abc<2 in Bất đẳng thức - Cực trị Started by pinokio119, 27-10-2013	5 replies 6172 views	pinokio119 31-10-2013
$x^{k}y^{k}(x^{k}+y^... in Bất đẳng thức và cực trị Started by pinokio119, 27-10-2013	1 reply 296 views	nguyenqn1998 28-10-2013
Tìm n nguyên dương để P là số nguyên tố in Các bài toán Đại số khác Started by pinokio119, 16-03-2013	1 reply 365 views	PT42 20-05-2013
Cho a,b,c thoả mãn a+b+c+d=4 .Cmr in Bất đẳng thức và cực trị Started by pinokio119, 26-03-2013 mrmathcskh0110, fa4ever	4 replies 3171 views	Sagittarius912 11-05-2013
Cho hình lục giác đều ABCDEG in Đại số Started by pinokio119, 26-03-2013	1 reply 354 views	buiminhhieu 01-04-2013
CMR: $2222^{5555}+5555^{2222}... in Số học Started by Christian Goldbach, 27-03-2013	18 replies 2431 views	kinhvung 31-03-2013
Cho n là số tự nhiên. Chứng minh nếu $A=2+2\sqr... in Số học Started by Nguyen Tho The Cuong, 31-03-2013	2 replies 1567 views	Christian Goldbach 31-03-2013
Giải PT :$x^{2} + (\frac{x}... in Đại số Started by cr7pt, 28-03-2013	4 replies 284 views	Peter97 30-03-2013
a^6>3. in Các dạng toán khác Started by duybigbangvip, 26-03-2013	17 replies 3670 views	pinokio119 30-03-2013
CMR: b=d in Số học Started by Christian Goldbach, 27-03-2013	3 replies 367 views	pinokio119 30-03-2013
CMR:$x^3+y^3\leq x^2+y^2\leq x+y\leq... in Bất đẳng thức và cực trị Started by Christian Goldbach, 27-03-2013	3 replies 369 views	pinokio119 30-03-2013
Cho $a^{5}+a=a^{3}+2$. CMR:... in Bất đẳng thức và cực trị Started by fa4ever, 25-03-2013	3 replies 883 views	pinokio119 30-03-2013
CMR có ít nhất 2008 điểm nằm trên đường tròn in Đại số Started by pinokio119, 26-03-2013	1 reply 388 views	Christian Goldbach 28-03-2013
Tìm Max của a+b in Bất đẳng thức và cực trị Started by Napoleon99, 25-03-2013	4 replies 389 views	vnmath98 25-03-2013
$\sum \frac{1}{a^{2... in Bất đẳng thức và cực trị Started by pinokio119, 25-03-2013	1 reply 299 views	Christian Goldbach 25-03-2013
Chứng minh P=(a+1)(b+1)(c+1)>32208336 in Bất đẳng thức và cực trị Started by pinokio119, 25-03-2013	0 replies 188 views	pinokio119 25-03-2013
Tìm Max của P= in Bất đẳng thức và cực trị Started by pinokio119, 25-03-2013	1 reply 378 views	nguyencuong123 25-03-2013
Chứng minh: $\frac{a^{2}}... in Bất đẳng thức và cực trị Started by eatchuoi19999, 17-03-2013 bất đẳng thức và cực trị	7 replies 521 views	buiminhhieu 18-03-2013
$O=\sum \frac{\sqrt{x^... in Bất đẳng thức và cực trị Started by pinokio119, 17-03-2013	1 reply 399 views	Oral1020 17-03-2013
Cho x+y+z=0 chứng minh rằng in Đại số Started by pinokio119, 16-03-2013	3 replies 344 views	caovannct 16-03-2013
$\frac{25x}{y+z}+\frac{4y}{x+z}+\frac... in Bất đẳng thức và cực trị Started by pinokio119, 16-03-2013 mr.mathcskh0110	1 reply 1476 views	25 minutes 16-03-2013

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