Search found 5 matches
- Mon Jul 12, 2021 1:18 am
- Forum: Geometry
- Topic: 18 segments
- Replies: 1
- Views: 8065
18 segments
Adam has a circle of radius $1$ centered at the origin. - First, he draws $6$ segments from the origin to the boundary of the circle, which splits the upper (positive $y$) semicircle into $7$ equal pieces. - Next, starting from each point where a segment hit the circle, he draws an altitude to the $...
- Sat Jul 10, 2021 4:06 pm
- Forum: College / University Level
- Topic: Limit
- Replies: 0
- Views: 40486
Limit
Calculate limit
- Fri Jul 09, 2021 2:34 am
- Forum: Algebra
- Topic: sqrt of sqrt
- Replies: 1
- Views: 5033
sqrt of sqrt
Calculate $2\sqrt{2\sqrt[5]{2\sqrt[8]{2\sqrt[11]{2 \cdots}}}}$
- Fri Apr 12, 2019 11:50 pm
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO-2014 circled pentagon
- Replies: 2
- Views: 8479
Re: BdMO-2014 circled pentagon
Yes, but i think is something wrong with it
- Fri Mar 29, 2019 11:07 am
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO-2014 circled pentagon
- Replies: 2
- Views: 8479
BdMO-2014 circled pentagon
$ABCDE$ is a circled pentagon. $AC= 2$, $AD= 3$, $BD=5$, $BE =1$ and $CD/DE = 10/3$, $BC/CE = a/b$ (where $a$ and $b$ are coprime) How to find the value $a-b$?
|AB| < |AC| ... so |AD| + |AB| < |AD| + |AC| = 2 + 3 = 5 = |BD| so is there a triangle ΔABD?
|AB| < |AC| ... so |AD| + |AB| < |AD| + |AC| = 2 + 3 = 5 = |BD| so is there a triangle ΔABD?