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There have been 136 items by bovuotdaiduong (Search limited from 10-06-2020)

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$\Delta ABC$ cân tại $A$ nội tiế... in Hình học Started by bovuotdaiduong, 06-04-2016	1 reply 221 views	12345678987654321123456789 06-04-2016
$a-b = \sqrt{3-b^2} - \sqrt... in Đại số Started by bovuotdaiduong, 06-04-2016	2 replies 239 views	O0NgocDuy0O 06-04-2016
Tìm $m$ để $x^2+(4m+1)x+2(m-4)=0$ có... in Đại số Started by bovuotdaiduong, 06-04-2016	1 reply 890 views	toannguyenebolala 06-04-2016
$\Delta ABC$, trung tuyến $AM$.... in Hình học Started by bovuotdaiduong, 29-03-2016	2 replies 610 views	vkhoa 06-04-2016
$1995^{1995}=a_1+a_2+...+a_n$ thì... in Đại số Started by bovuotdaiduong, 05-04-2016	1 reply 483 views	12345678987654321123456789 05-04-2016
$1995^{1995}=a_1+a_2+...+a_n$ thì... in Số học Started by bovuotdaiduong, 05-04-2016	0 replies 221 views	bovuotdaiduong 05-04-2016
$\frac{x+2}{13}+\frac... in Đại số Started by bovuotdaiduong, 05-04-2016	1 reply 483 views	tpdtthltvp 05-04-2016
Min $S=\sqrt{x-1}+\sqrt{2x^... in Bất đẳng thức và cực trị Started by bovuotdaiduong, 05-04-2016	1 reply 282 views	12345678987654321123456789 05-04-2016
$\sqrt{2x+3}+\sqrt{x+1... in Đại số Started by bovuotdaiduong, 05-04-2016	1 reply 314 views	12345678987654321123456789 05-04-2016
$x+y \leq 1$. Min $A=\frac{... in Bất đẳng thức và cực trị Started by bovuotdaiduong, 05-04-2016	2 replies 290 views	lehakhiem212 05-04-2016
$\left\{\begin{matrix}... in Đại số Started by bovuotdaiduong, 29-03-2016	5 replies 528 views	Mystic 04-04-2016
$\Delta ABC$ vuông tại $A$.... in Hình học Started by bovuotdaiduong, 04-04-2016	0 replies 131 views	bovuotdaiduong 04-04-2016
Tứ giác ABCD nội tiếp $(O;\frac{AD}... in Hình học Started by bovuotdaiduong, 04-04-2016	2 replies 1284 views	tanthanh112001 04-04-2016
Giải pt $x^2+\frac{4x^2}{(x+2)^2... in Đại số Started by bovuotdaiduong, 03-04-2016	1 reply 1905 views	I Love MC 03-04-2016
Số tự nhiên có hai chữ số $\overline{xy... in Đại số Started by bovuotdaiduong, 29-03-2016	3 replies 452 views	PlanBbyFESN 29-03-2016
$\left\{\begin{matrix}... in Đại số Started by bovuotdaiduong, 29-03-2016	1 reply 640 views	leminhnghiatt 29-03-2016
$\Delta ABC$ cân, giao điểm $I$... in Hình học Started by bovuotdaiduong, 29-03-2016	0 replies 236 views	bovuotdaiduong 29-03-2016
Hai vòi nước chảy sau 5h50' đầy bể, vòi 1 nhanh hơn v... in Đại số Started by bovuotdaiduong, 23-03-2016	1 reply 895 views	bovuotdaiduong 23-03-2016
Tổng các nghịch đảo các nghiệm của pt $25\sqrt... in Đại số Started by bovuotdaiduong, 20-03-2016	2 replies 1480 views	tritanngo99 20-03-2016
Tìm mối liên hệ giữa $a,b,c$ sao cho $B=... in Bất đẳng thức và cực trị Started by bovuotdaiduong, 17-03-2016	8 replies 540 views	bovuotdaiduong 19-03-2016
Cho $(x+y)^3=(x-y-6)^2$. Gọi $(x_0;y_0)... in Đại số Started by bovuotdaiduong, 17-03-2016	2 replies 181 views	bovuotdaiduong 18-03-2016
Cho điểm $A$ có hoành độ là $m$ thuộc... in Đại số Started by bovuotdaiduong, 17-03-2016	3 replies 501 views	bovuotdaiduong 18-03-2016
$GTNN$ của $M=m^4+(3-m)^2$ in Bất đẳng thức và cực trị Started by bovuotdaiduong, 17-03-2016	3 replies 263 views	leminhnghiatt 17-03-2016
Giải $\frac{x^2}{(x-1)^2}+... in Đại số Started by bovuotdaiduong, 17-03-2016	2 replies 106 views	bovuotdaiduong 17-03-2016
Gọi k là số các cặp $(x_0;y_0) \neq 0$ t/m... in Đại số Started by bovuotdaiduong, 10-03-2016	2 replies 225 views	I Love MC 10-03-2016

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