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Chứng minh BĐT

Started By maihoang02, 24-10-2016 - 21:12

3 replies to this topic

Binh nhì

CHỨNG MINH RẰNG:

$\frac{b^{2}+c^{2}-a^{2}}{2bc}$+$\frac{a^{2}+c^{2}-b^{2}}{2ac}$+$\frac{a^{2}+b^{2}-c^{2}}{2ab}$$\leq \frac{3}{2}$

Thượng sĩ

Rằng buộc $a,b,c\in R$ hay $a,b,c>0??$ bạn.

Thượng sĩ

CHỨNG MINH RẰNG:

$\frac{b^{2}+c^{2}-a^{2}}{2bc}$+$\frac{a^{2}+c^{2}-b^{2}}{2ac}$+$\frac{a^{2}+b^{2}-c^{2}}{2ab}$$\leq \frac{3}{2}$

$a,b,c$ cung dau

Binh nhì

Rằng buộc $a,b,c\in R$ hay $a,b,c>0??$ bạn.

a,b,c la 3 canh cua 1 tam giac thi cung ap dung duoc cach nay a

	Toán Trung học Cơ sở → Bất đẳng thức và cực trị → $\frac{a^{2}}{b^{2}+c^{2}}+\frac{b^{2}}{a^{2}+c^{2}}+\frac{c^{2}}{b^{2}+a^{2}}\geq \frac{a}{b+c}+\frac{b}{c+a}+\frac{c}{a+b}$ Started by lanh24042002, 03-03-2017 bđt khó		3 replies 517 Views	$$\frac{a^{2}}{b^{2}+c^{2}}+\frac{b^{2}}{a^{2}+c^{2}}+\frac{c^{2}}{b^{2}+a^{2}}\geq \frac{a}{b+c}+\frac{b}{c+a}+\frac{c}{a+b}$ - last post by KietLW9$ KietLW9 04-04-2021
	Toán Trung học Cơ sở → Bất đẳng thức và cực trị → $\frac{a}{b+c+1}$+$\frac{a}{b+c+1}$+$\frac{a}{b+c+1}$+$(1-a)(1-b)(1-c)$ $\leq1$ Started by lephuonganh244, 10-10-2016 bđt khó		3 replies 571 Views	$$\frac{a}{b+c+1}$+$\frac{a}{b+c+1}$+$\frac{a}{b+c+1}$+$(1-a)(1-b)(1-c)$ $\leq1$ - last post by toannguyenebolala$ toannguyenebolala 12-10-2016