Search found 11 matches
- Wed Aug 26, 2015 12:52 am
- Forum: National Math Camp
- Topic: Discussion on Exam 1
- Replies: 8
- Views: 8811
Re: Discussion on Exam 1
Can anybody give me hints on how to solve problem 1.4?
- Mon Aug 24, 2015 10:18 pm
- Forum: National Math Camp
- Topic: Exam 1, Online Number Theory Camp, 2015
- Replies: 15
- Views: 16421
Re: Exam 1, Online Number Theory Camp, 2015
Please fix this
- Mon Aug 24, 2015 10:23 am
- Forum: National Math Camp
- Topic: ONT Camp Day 1
- Replies: 12
- Views: 15300
Re: ONT Camp Day 1
i can't understand the 5th problem. anybody please help me or provide a bangla version of the problem
- Fri Aug 21, 2015 11:39 pm
- Forum: National Math Camp
- Topic: Online Number Theory Camp, 2015
- Replies: 1
- Views: 5930
Re: Online Math Camp 1, 2015
It would have been better if the booklist is published earlier
- Fri Aug 21, 2015 11:38 pm
- Forum: Secondary Level
- Topic: REciprocals!!
- Replies: 3
- Views: 4011
Re: REciprocals!!
Thanks
- Sat Mar 14, 2015 8:31 pm
- Forum: Geometry
- Topic: Congruence
- Replies: 1
- Views: 3119
Congruence
Capture.JPG $ABCDEF$ is a regular hexagon. $H$ and $G$ are midpoints of $AB$ and $ED$. Prove,\[ \triangle AFE \cong \triangle AEM \cong \triangle BMD \cong \triangle BCD \] and \[ \triangle AHM \cong \triangle BHM \cong \triangle DMG \cong \triangle EMG \cong \triangle AKF \cong \triangle IEF \cong...
- Wed Mar 04, 2015 8:36 pm
- Forum: Secondary Level
- Topic: REciprocals!!
- Replies: 3
- Views: 4011
REciprocals!!
Write $x$ as the sum of the reciprocals of $k$ odd integers? Write $x$ as the sum of the reciprocals of $k$ even integers? Write $x$ as the sum of the reciprocals of $k$ integers? Write $\frac{x}{y}$ as the sum of the reciprocals of $k$ odd integers? Write $\frac{x}{y}$ as the sum of the reciprocals...
- Wed Mar 04, 2015 12:41 am
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO national 2014: junior 8
- Replies: 9
- Views: 7848
Re: BdMO national 2014: junior 8
Stewart's Theorem apply করেও তো আমার একই জিনিস আসছে।Tahmid wrote: apply stewart's theorem in triangle $FVK$ .
- Tue Mar 03, 2015 10:56 pm
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO national 2014: junior 8
- Replies: 9
- Views: 7848
Re: BdMO national 2014: junior 8
$EF^2$ এর মান কিভাবে $ \frac{5a^2}{8}$ হয়. আমারতো $EF^2$ মান এইরকম আসছেঃtanmoy wrote: By Stewart's theorem,we get: $EF^{2}=\frac{5a^{2}}{8}$
$
EF^2=OF^2-OE^2
=(\frac{a}{2}) ^2 - (\frac{a \sqrt{2}}{4}) ^2
=\frac{a^2}{4} - \frac{2a^2}{16}
=\frac{a^2}{8}
$
- Tue Mar 03, 2015 10:51 pm
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO national 2014: junior 8
- Replies: 9
- Views: 7848
Re: BdMO national 2014: junior 8
@tonmoy
$EF^2$ এর মান কিভাবে $ \frac{5a^2}{8}$ হয়. আমারতো $EF^2$ মান এইরকম আসছেঃ
$
EF^2=OF^2-OE^2
=(\frac{a}{2}) ^2 - (\frac{a \sqrt{2}}{4}) ^2
=\frac{a^2}{4} - \frac{2a^2}{16}
=\frac{a^2}{8}
$
$EF^2$ এর মান কিভাবে $ \frac{5a^2}{8}$ হয়. আমারতো $EF^2$ মান এইরকম আসছেঃ
$
EF^2=OF^2-OE^2
=(\frac{a}{2}) ^2 - (\frac{a \sqrt{2}}{4}) ^2
=\frac{a^2}{4} - \frac{2a^2}{16}
=\frac{a^2}{8}
$