Search found 71 matches
- Fri Apr 23, 2021 5:17 pm
- Forum: National Math Camp
- Topic: BdMO 2021 National Camp Discussion Thread
- Replies: 6
- Views: 4174
- Mon Apr 12, 2021 11:36 am
- Forum: Social Lounge
- Topic: Is it very late to start my math journey and participate in IMO?
- Replies: 2
- Views: 6838
Re: Is it very late to start my math journey and participate in IMO?
NO!!!
But learning math is >>>>>>>>>> participating in national olympiad.
But learning math is >>>>>>>>>> participating in national olympiad.
- Fri Apr 02, 2021 5:41 pm
- Forum: Secondary Level
- Topic: Midcircles!!!
- Replies: 2
- Views: 6396
Re: Midcircles!!!
This is known as incenter excenter lemma
- Tue Mar 30, 2021 10:37 am
- Forum: Algebra
- Topic: FE Marathon!
- Replies: 98
- Views: 694876
Re: FE Marathon!
PROBLEM 23:
Find all continuouos functions $ f: \mathbb{R}\to\mathbb{R} $ such that for all reals $ x $ and $ y $
$ f(x+f(y))=y+f(x+1) $ .
Find all continuouos functions $ f: \mathbb{R}\to\mathbb{R} $ such that for all reals $ x $ and $ y $
$ f(x+f(y))=y+f(x+1) $ .
- Tue Mar 30, 2021 10:10 am
- Forum: Geometry
- Topic: Geometry Marathon : Season 3
- Replies: 146
- Views: 201370
Re: Geometry Marathon : Season 3
i don't think soAsif Hossain wrote: ↑Tue Mar 30, 2021 8:58 amthen i think the $TX=BX$ holds iff $T=B$Mehrab4226 wrote: ↑Mon Mar 29, 2021 10:08 pmI think he meant $\triangle BMA$Asif Hossain wrote: ↑Mon Mar 29, 2021 10:01 pm
What did you meant by inside of $\angle BMA$??(sry if this sound foolish)
- Sun Mar 28, 2021 9:14 pm
- Forum: Geometry
- Topic: Geometry Marathon : Season 3
- Replies: 146
- Views: 201370
- Sun Mar 28, 2021 9:09 pm
- Forum: Social Lounge
- Topic: PROLAP BOKA SECTION
- Replies: 10
- Views: 11625
Re: PROLAP BOKA SECTION
বলে নি এখনো
- Sun Mar 28, 2021 3:42 pm
- Forum: Geometry
- Topic: Geometry Marathon : Season 3
- Replies: 146
- Views: 201370
- Sun Mar 28, 2021 2:42 pm
- Forum: Social Lounge
- Topic: PROLAP BOKA SECTION
- Replies: 10
- Views: 11625
Re: PROLAP BOKA SECTION
২টা হবে মেবি।ঠিকবো না এবার!
- Sat Mar 27, 2021 9:27 pm
- Forum: Divisional Math Olympiad
- Topic: BdMO Regional 2021 Higher Secondary P8
- Replies: 16
- Views: 12930
Re: BdMO Regional 2021 Higher Secondary P8
I didn't think about $f$ could be bijective. :cry: :cry: :cry: So it gave me a weird solution, a huge one in fact. you are much better than me i $f(f(x))=x$ reminded me of involution and i knew that the function is bijective but i thought the question wanted $f(x)$ in $x$ terms so i gave the ans $0...