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Easy Math Editor

This discussion board is a place to discuss our Daily Challenges and the math and science related to those challenges. Explanations are more than just a solution — they should explain the steps and thinking strategies that you used to obtain the solution. Comments should further the discussion of math and science.

When posting on Brilliant:

Use the emojis to react to an explanation, whether you're congratulating a job well done , or just really confused .
Ask specific questions about the challenge or the steps in somebody's explanation. Well-posed questions can add a lot to the discussion, but posting "I don't understand!" doesn't help anyone.
Try to contribute something new to the discussion, whether it is an extension, generalization or other idea related to the challenge.
Stay on topic — we're all here to learn more about math and science, not to hear about your favorite get-rich-quick scheme or current world events.

Markdown	Appears as
`italics` or `_italics_`	italics
`bold` or `__bold__`	bold
- bulleted - list	bulleted list
1. numbered 2. list	numbered list
Note: you must add a full line of space before and after lists for them to show up correctly
paragraph 1 paragraph 2	paragraph 1 paragraph 2
`[example link](https://brilliant.org)`	example link
`> This is a quote`	This is a quote
# I indented these lines # 4 spaces, and now they show # up as a code block. print "hello world"	# I indented these lines # 4 spaces, and now they show # up as a code block. print "hello world"

Math	Appears as
Remember to wrap math in `$` ... `$` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$

Comments

We have removed that functionality.

Calvin Lin Staff - 4 years, 4 months ago

Sir, So will you write the feedback on the solution or is the feature removed?

Ankit Kumar Jain - 4 years, 4 months ago

The functionality of "request feedback from challenge master" has been removed.

Calvin Lin Staff - 4 years, 4 months ago

@Calvin Lin Sir , recently I posted two questions ..the problem name changed automatically.

Like I named the problem 'Strange' , it changed to 'A geometry problem by Ankit Kumar Jain.

Ankit Kumar Jain - 4 years, 3 months ago

We remove titles that are meaningless to the problem.

Calvin Lin Staff - 4 years, 3 months ago

Okay sir .

Sir , can you please suggest some name for the problem I mentioned above so that I can get some idea and I can try to give names that are meaningful from next time.

Ankit Kumar Jain - 4 years, 3 months ago

@Calvin Lin Please help me out!

I was reading the wiki On AM - GM Inequality .In it I found out that there was a proof which said that it requires a bit of combinatorics . In the last bit of the proof , it said

$k > m_g > 0 \Rightarrow m_g \in {(0 , k)}$

$k \geq m_a > 0 \Rightarrow m_a \in {(0 , k]}$ .

From these how does it follow that $m_a \geq m_g$ ?

Ankit Kumar Jain - 4 years, 3 months ago

@Pi Han Goh Can you please help me out?

Ankit Kumar Jain - 4 years, 2 months ago

I don't know what $k, m_a$ and $m_g$ represents. So I can't help you with that...

Pi Han Goh - 4 years, 2 months ago

@Pi Han Goh – Sir $m_a$ is the arithmetic mean and $m_g$ is geometric mean and $k$ is some constant.

Ankit Kumar Jain - 4 years, 2 months ago

@Pi Han Goh – AM-GM .In the proof that says 'It requires a bit of combinatorics' , that one.

Ankit Kumar Jain - 4 years, 2 months ago

@Ankit Kumar Jain – Where? I don't know which book or article you are looking at...

Pi Han Goh - 4 years, 2 months ago

@Pi Han Goh – I have posted the link to the source right in my previous comment. It is the brilliant wiki page on AM- GM Inequality.

Ankit Kumar Jain - 4 years, 2 months ago

Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$