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There have been 24 items by nguyenchithanh2511 (Search limited from 10-06-2020)

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Với $m,n\epsilon Z$ cm $mn(m^4-n^4)... in Số học Started by nguyenchithanh2511, 22-09-2021	1 reply 429 views	Tan Phuc Nguyen 26-09-2021
Tính x in Hình học Started by nguyenchithanh2511, 17-11-2021	0 replies 296 views	nguyenchithanh2511 17-11-2021
Tính IH in Hình học Started by nguyenchithanh2511, 23-10-2021	1 reply 647 views	tritanngo99 24-10-2021
Tìm p,q nguyên sao cho $\sqrt{p-2} +... in Đại số Started by nguyenchithanh2511, 16-08-2021	1 reply 375 views	KietLW9 16-08-2021
Tìm nghiệm tự nhiên cùa phương trình $3^{x}+1=y^{2}... in Số học Started by nguyenchithanh2511, 15-08-2021	1 reply 428 views	kogioitoan 15-08-2021
Tìm các số $abc$ với các chữ số khác nhau để... in Số học Started by nguyenchithanh2511, 04-09-2021	0 replies 402 views	nguyenchithanh2511 04-09-2021
Tìm các nghiệm nguyên dương của phương trình: $x^... in Số học Started by nguyenchithanh2511, 03-08-2021	1 reply 538 views	Baoriven 03-08-2021
Tìm $n\epsilon N$ , $n>1$ để... in Số học Started by nguyenchithanh2511, 06-09-2021	1 reply 375 views	Hoang72 06-09-2021
RGBT $C=\sqrt{\frac{1}{a^2+b^2}+\frac... in Đại số Started by nguyenchithanh2511, 14-09-2021	0 replies 605 views	nguyenchithanh2511 14-09-2021
phần nguyên của $\frac{n^3+8n+1}... in Số học Started by nguyenchithanh2511, 27-10-2021	0 replies 633 views	nguyenchithanh2511 27-10-2021
hỏi ngoài chủ đề in Thử các chức năng của diễn đàn Started by nguyenchithanh2511, 04-10-2021	0 replies 524 views	nguyenchithanh2511 04-10-2021
GPT $5(8x^{2}+11)=27(2x+1)\sqrt{... in Đại số Started by nguyenchithanh2511, 02-09-2021	0 replies 1058 views	nguyenchithanh2511 02-09-2021
GPT $x^{2}+8x-1=2(2x+1)\sqrt{2x... in Phương trình, hệ phương trình và bất phương trình Started by nguyenchithanh2511, 03-10-2021	0 replies 585 views	nguyenchithanh2511 03-10-2021
CMR nếu $a^{2016}+b^{2017}+c^{2018}\vdots 6... in Số học Started by nguyenchithanh2511, 04-08-2021	1 reply 404 views	Velomi 04-08-2021
CMR : $xa^{2}+yb^{2}>xyc^{2}$ in Bất đẳng thức và cực trị Started by nguyenchithanh2511, 18-05-2022	0 replies 381 views	nguyenchithanh2511 18-05-2022
CMR $\frac{sin^3 x}{a^{3... in Hình học Started by nguyenchithanh2511, 18-03-2022	0 replies 401 views	nguyenchithanh2511 18-03-2022
CM $\frac{IA}{IC}=\fra... in Hình học Started by nguyenchithanh2511, 18-12-2021	1 reply 387 views	Le Tuan Canhh 18-12-2021
CM in Hình học Started by nguyenchithanh2511, 24-08-2021	0 replies 481 views	nguyenchithanh2511 24-08-2021
Chứng minh $\frac{1}{AF^{2}}=\frac{1}{AB^{... in Hình học Started by nguyenchithanh2511, 08-08-2021	0 replies 457 views	nguyenchithanh2511 08-08-2021
Cho các số thực dương x,y,z thỏa mãn điều kiện $x... in Đại số Started by nguyenchithanh2511, 23-07-2021	1 reply 502 views	Baoriven 23-07-2021
Cho a,b,c,d là các số thực dương.CMR: $(a+b)(a+b+c)... in Bất đẳng thức và cực trị Started by nguyenchithanh2511, 05-08-2021	2 replies 333 views	KietLW9 06-08-2021
Cho a,b,c,d >0 tm $abc=a+b+c+2$ CM $... in Bất đẳng thức và cực trị Started by nguyenchithanh2511, 10-09-2021	1 reply 617 views	Dark Repulsor 11-09-2021
$P=\frac{3a^{2}+a^{2}b+\frac{9ab^{2}}{2}+(... in Bất đẳng thức và cực trị Started by nguyenchithanh2511, 07-11-2021	1 reply 548 views	KietLW9 17-11-2021
$MK^{2}-NK^{2}=MO^{2}-... in Hình học Started by nguyenchithanh2511, 12-02-2022	2 replies 593 views	PDF 16-02-2022

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