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	$\sqrt{\frac{a^2+b^2}{a+b}}+\sqrt{... in Bất đẳng thức và cực trị Started by ngothithuynhan100620, 28-04-2016 bdt_03 Last Post by KietLW9, 17-12-2021		1 reply 630 views	KietLW9 Posted 28-04-2016
	$\frac{1}{a+b+4}+\frac... in Bất đẳng thức và cực trị Started by ngothithuynhan100620, 26-04-2016 bdt_03 Last Post by KietLW9, 08-05-2021		2 replies 655 views	KietLW9 Posted 26-04-2016
	CMR: $\sum \frac{ab}{(a-b)^2}\ge... in Bất đẳng thức và cực trị Started by ngothithuynhan100620, 09-05-2016 bdt_03 Last Post by KietLW9, 16-04-2021		2 replies 1029 views	KietLW9 Posted 09-05-2016
	Chứng minh rằng: $64(\sum a)^4\ge 243(... in Bất đẳng thức - Cực trị Started by tritanngo99, 22-03-2017 bdt_03 Last Post by Nguyenhuyen_AG, 22-03-2017		1 reply 551 views	Nguyenhuyen_AG Posted 22-03-2017
	Tìm GTNN của biểu thức: $P=\frac{x^3+y^3+z... in Bất đẳng thức và cực trị Started by TanSan26, 28-10-2016 bdt_03 Last Post by thang1308, 28-10-2016		1 reply 727 views	thang1308 Posted 28-10-2016
	Tìm GTNN của biểu thức: $P=\frac{3x}... in Bất đẳng thức và cực trị Started by tritanngo99, 07-07-2016 bdt_03 Last Post by royal1534, 09-07-2016		4 replies 807 views	royal1534 Posted 07-07-2016
	Cho $a,b,c>0$ và $a+b+c=3$. Cmr:... in Bất đẳng thức và cực trị Started by ngothithuynhan100620, 01-06-2016 bdt_03 Last Post by phamngochung9a, 01-06-2016		1 reply 656 views	phamngochung9a Posted 01-06-2016
	Chứng minh rằng: $\frac{1}{ab+a+... in Bất đẳng thức và cực trị Started by ngothithuynhan100620, 21-05-2016 bdt_03 Last Post by haichau0401, 21-05-2016		1 reply 896 views	haichau0401 Posted 21-05-2016
	Tìm giá trị nhỏ nhất của biểu thức: $P=\frac... in Bất đẳng thức và cực trị Started by ngothithuynhan100620, 18-05-2016 bdt_03 Last Post by ngothithuynhan100620, 19-05-2016		3 replies 701 views	ngothithuynhan100620 Posted 18-05-2016
	Cho $a,b,c>0$ và $\sum a=3$.... in Bất đẳng thức và cực trị Started by ngothithuynhan100620, 17-05-2016 bdt_03 Last Post by HDTterence2k, 17-05-2016		10 replies 726 views	HDTterence2k Posted 17-05-2016
	Cho a,b,c>0 và a+b+c=4. Cmr: $(a+b)(b+c)(c+a)... in Bất đẳng thức và cực trị Started by ngothithuynhan100620, 16-05-2016 bdt_03 Last Post by phamhuy1801, 16-05-2016		2 replies 2565 views	phamhuy1801 Posted 16-05-2016
	CMR: $\sum \frac{a^2}{(b-c)^2}\ge 2... in Bất đẳng thức và cực trị Started by ngothithuynhan100620, 09-05-2016 bdt_03 Last Post by ngothithuynhan100620, 09-05-2016		3 replies 703 views	ngothithuynhan100620 Posted 09-05-2016
	Cho a,b,c là các số thực dương thỏa mãn: $a^2+bc=b^2... in Bất đẳng thức và cực trị Started by tritanngo99, 29-04-2016 bdt_03 Last Post by tritanngo99, 29-04-2016		0 replies 505 views	tritanngo99 Posted 29-04-2016
	$\left(\frac{4a}{b+c}+... in Bất đẳng thức và cực trị Started by ngothithuynhan100620, 27-04-2016 bdt_03 Last Post by superpower, 27-04-2016		2 replies 398 views	superpower Posted 27-04-2016
	$\frac{5b^3-a^3}{ab+3b^2}+... in Bất đẳng thức và cực trị Started by ngothithuynhan100620, 27-04-2016 bdt_03 Last Post by NTA1907, 27-04-2016		1 reply 2205 views	NTA1907 Posted 27-04-2016
	$2(x^6+y^6+z^6)-(x^4y^2+y^4z^2+z^4x^2)\le 192... in Bất đẳng thức và cực trị Started by ngothithuynhan100620, 27-04-2016 bdt_03 Last Post by NTA1907, 27-04-2016		1 reply 367 views	NTA1907 Posted 27-04-2016
	$B=3a+4\sqrt{1-a^2}$ với các giá... in Bất đẳng thức và cực trị Started by ngothithuynhan100620, 27-04-2016 bdt_03 Last Post by Minhnguyenthe333, 27-04-2016		1 reply 360 views	Minhnguyenthe333 Posted 27-04-2016
	Tìm giá trị lớn nhất của biểu thức: $\frac... in Bất đẳng thức và cực trị Started by ngothithuynhan100620, 27-04-2016 bdt_03 Last Post by PlanBbyFESN, 27-04-2016		1 reply 352 views	PlanBbyFESN Posted 27-04-2016
	Max $20xy+11xz+2000yz$ in Bất đẳng thức và cực trị Started by ngothithuynhan100620, 27-04-2016 bdt_03 Last Post by ngothithuynhan100620, 27-04-2016		0 replies 519 views	ngothithuynhan100620 Posted 27-04-2016

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