Search found 8 matches
- Thu Apr 01, 2021 10:10 pm
- Forum: Junior Level
- Topic: Midcircles!!!
- Replies: 0
- Views: 4244
Midcircles!!!
Hello! This topic may be unrelated, but I just needed to get this out there. I have "discovered" something, which I have named midcircles. I was just proving some theorems from an old book. Here are the theorems: The internal angle bisectors of $\angle ABC$ and $\angle ACB$ intersect at $D.$ The ext...
- Thu Apr 01, 2021 9:58 pm
- Forum: Secondary Level
- Topic: Midcircles!!!
- Replies: 2
- Views: 6281
Midcircles!!!
Hello! This topic may be unrelated, but I just needed to get this out there. I have "discovered" something, which I have named midcircles. I was just proving some theorems from an old book. Here are the theorems: The internal angle bisectors of $\angle ABC$ and $\angle ACB$ intersect at $D.$ The ext...
- Wed Mar 31, 2021 12:11 pm
- Forum: Junior Level
- Topic: BDMO Regional Junior P8
- Replies: 14
- Views: 8644
Re: BDMO Regional Junior P8
User Mehrab4226 has already given the solution, though here I have shown a similar approach. Firstly, let's look at how many sets there are with $5$ elements that satisfy the question. It is easy to see there are five sets, namely $\{1, 2, 3, 4, 5\}, \{2, 3, 4, 5, 6\}, \{3, 4, 5, 6, 7\}, \{4, 5, 6,...
- Mon Mar 29, 2021 9:42 pm
- Forum: Introductions
- Topic: পরিচয়/Introduction
- Replies: 1
- Views: 6383
পরিচয়/Introduction
হ্যালো গণিতবিদ বন্ধুরা! আমি সূর্য অনিবার। বর্তমানে আমার বয়স ১২। আমি নালন্দা উচ্চ বিদ্যালয়ের ৭ম শ্রেণিতে পড়ি। এই ফোরামে আমি নতুন নই, তবে মাত্র কয়েকদিন আগের থেকেই এখানে ঘোরাফেরা, গণিতের সমস্যা দেখা, সমাধান লেখা শুরু করলাম। এখন পর্যন্ত ফোরামটা খুবই ভালো লাগছে! আশা করি আরো সমস্যার সমাধান করতে পারব। ...
- Sun Mar 28, 2021 9:30 pm
- Forum: Junior Level
- Topic: 2019/3
- Replies: 4
- Views: 53408
- Sun Mar 28, 2021 9:00 pm
- Forum: Junior Level
- Topic: Problem solution
- Replies: 3
- Views: 4104
Re: Problem solution
The question does not have enough information.
- Sun Mar 28, 2021 7:17 pm
- Forum: Junior Level
- Topic: BDMO Regional Junior P8
- Replies: 14
- Views: 8644
Re: BDMO Regional Junior P8
User Mehrab4226 has already given the solution, though here I have shown a similar approach. Firstly, let's look at how many sets there are with $5$ elements that satisfy the question. It is easy to see there are five sets, namely $\{1, 2, 3, 4, 5\}, \{2, 3, 4, 5, 6\}, \{3, 4, 5, 6, 7\}, \{4, 5, 6, ...
- Thu Dec 03, 2020 12:07 pm
- Forum: Secondary Level
- Topic: BDMO 2019, National, Secondary Q. no. 9
- Replies: 1
- Views: 6035
BDMO 2019, National, Secondary Q. no. 9
[math] f(x+y) = xf(x)+2f(y)-x-y. f(2019) = a/b, a+b = ? [/math]