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There have been 120 items by hthang0030 (Search limited from 20-05-2020)

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Tìm công thức tính tổng các bình phương in Số học Started by namathno7, 19-04-2016	5 replies 72724 views	Nobodyv3 21-03-2023
$\frac{a}{b+2}+\frac{b}{c+2}+\frac{c}... in Bất đẳng thức và cực trị Started by hthang0030, 03-12-2015	1 reply 347 views	KietLW9 17-05-2021
$\frac{a}{b+2}+\frac... in Bất đẳng thức và cực trị Started by hthang0030, 18-03-2016	4 replies 409 views	KietLW9 08-05-2021
Chứng minh: $a^3b+b^3c+c^3a \leq \frac... in Bất đẳng thức và cực trị Started by O0NgocDuy0O, 23-04-2016	4 replies 2366 views	KietLW9 08-05-2021
$18\left ( \frac{1}{x^... in Bất đẳng thức và cực trị Started by NTA1907, 08-08-2016	2 replies 491 views	KietLW9 08-05-2021
$ \sqrt{\frac{a+b}{c}} + \sqrt{\... in Bất đẳng thức và cực trị Started by gagaga, 31-03-2017	4 replies 731 views	KietLW9 08-05-2021
Chứng minh $\frac{1+x^2}{1+y+x^2... in Bất đẳng thức và cực trị Started by hthang0030, 30-01-2016	3 replies 335 views	KietLW9 06-05-2021
$\frac{a}{b+2}+\frac... in Bất đẳng thức và cực trị Started by hthang0030, 03-12-2015	7 replies 506 views	KietLW9 05-05-2021
$\frac{a}{b+2}+\frac{b}{c+2}+\frac{c}... in Bất đẳng thức và cực trị Started by hthang0030, 01-10-2015	1 reply 347 views	KietLW9 16-04-2021
$\sum \frac{a}{\sqrt... in Bất đẳng thức và cực trị Started by Shin Janny, 21-08-2016	2 replies 407 views	KietLW9 04-04-2021
Tìm tham số m in Hàm số - Đạo hàm Started by hthang0030, 19-02-2018	1 reply 969 views	tritanngo99 19-02-2018
$(P(x))^2+(P(x-1))^2=2(P(x)-x)^2$ in Đa thức Started by hthang0030, 20-11-2017	1 reply 724 views	NHN 31-12-2017
Chứng minh M,H,N thẳng hàng in Hình học Started by hthang0030, 22-07-2017	1 reply 327 views	didifulls 22-07-2017
Tìm tất cả các hàm f: $$\mathbb{R... in Phương trình hàm Started by Maytroi, 08-06-2017	4 replies 951 views	hthang0030 09-06-2017
$f(x)-2f(2x)+f(4x)=x^{2}+x, \forall x... in Phương trình hàm Started by Zz Isaac Newton Zz, 04-06-2017	1 reply 640 views	hthang0030 07-06-2017
$u_{n+2}-2 \cos \alpha .u_{n+1}+u_n=0$ in Dãy số - Giới hạn Started by hthang0030, 19-05-2017	1 reply 507 views	hthang0030 20-05-2017
CMR:trực tâm tam giác POQ nằm trên AC in Hình học Started by hthang0030, 08-05-2017	3 replies 406 views	ecchi123 09-05-2017
Chứng minh rằng : $3(a^{2}+b^{2}+c^{2})+abc \ge... in Bất đẳng thức và cực trị Started by murasaki, 27-03-2017 bất đẳng thức and 2 more...	8 replies 1338 views	Nguyenhuyen_AG 01-05-2017
Đề thi vào lớp 10 môn toán chuyên tỉnh Bà Rịa-Vũng Tàu 2... in Tài liệu - Đề thi Started by I Love MC, 31-05-2016	19 replies 8645 views	bigway1906 28-04-2017
Đề thi vào lớp 10 toán THPT Chuyên năng kiếu Trần Phú in Tài liệu - Đề thi Started by hthang0030, 13-06-2016 1 2	20 replies 12052 views	0964932395 18-04-2017
Có hay không 16 số thỏa mãn Đk in Số học Started by TenLaGi, 12-04-2017	1 reply 367 views	hthang0030 16-04-2017
Chứng minh rằng: $4a^4+9b^4+16c^4+5a^2+10b^2+2c^2... in Bất đẳng thức - Cực trị Started by tritanngo99, 04-04-2017 guidetoimo2017	1 reply 574 views	hthang0030 16-04-2017
$2^{a}+3^{b}$ in Số học Started by Nghiapnh1002, 17-02-2017 số học	2 replies 609 views	hthang0030 01-04-2017
Với a,b,c là các số thực dương thỏa mãn in Bất đẳng thức và cực trị Started by murasaki, 29-03-2017	4 replies 419 views	hthang0030 30-03-2017
$\frac{a^3}{b}+\frac... in Bất đẳng thức và cực trị Started by LoveMath1234, 22-03-2017	4 replies 634 views	hthang0030 30-03-2017

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