Mathematics
Iris's user avatar
Iris's user avatar
Iris's user avatar
Iris
  • Member for 4 years, 8 months
  • Last seen more than 1 year ago
Profile Activity
Stats
411
reputation
2k
reached
8
answers
16
questions
Communities
About

My math is not very good, but I truly love it. I like to help others with math problems, too. Though I only know limited knowledge about math now, I will keep improving myself so I can teach more people.

Badges
View all badges
This user doesn’t have any gold badges yet.
3
silver badges
11
bronze badges
Top tags
View all tags
5
Score
8
Posts
33
Posts %
5
Score
3
Posts
12
Posts %
5
Score
1
Posts
4
Posts %
3
Score
5
Posts
21
Posts %
1
Score
5
Posts
21
Posts %
1
Score
2
Posts
8
Posts %
Top posts
View all questions and answers
All Questions Answers
Score Newest
answer
5
$14$ points in a regular hexagon of side $2$
Feb 29, 2020
question
4
12345678910111213.......201520162017, what is the remainder when this number is divided by 11?
Feb 27, 2020
question
3
$abcd=6(1-a)(1-b)(1-c)(1-d)$
Feb 18, 2020
question
3
Why is $(1+80)^t\equiv 1+80t \pmod{25}$ correct?
Apr 13, 2020
question
3
A variant of Morley’s trisector theorem involving external angles
May 8, 2020
question
3
In triangle ABC,angle A=90, AK is vertical to BC, IHGK and DEFK are squares inscribe in triangle ABK and triangle CAK. Proof that AH=AE.:
Aug 22, 2020
answer
3
How Many Ways Can Things be Grouped Under Conditions
Apr 19, 2020
question
2
Prove that in a triangle, there is a line which divides its area and perimeter into two equal parts, then the incenter is on this line.
Mar 8, 2020
question
1
proof that there doesn't exist integers $a, b, c>0$, that satisfy $a^2bc+2$, $ab^2c+2$ and $abc^2+2$ are all square numbers.
Feb 24, 2020
question
1
What is the ratio of side lengths of Cyclic regular Pentagon and a circumscribed regular pentagon?
Feb 25, 2020

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.