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

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:

`*italics*`

or`_italics_`

italics`**bold**`

or`__bold__`

boldNote: you must add a full line of space before and after lists for them to show up correctlyparagraph 1

paragraph 2

`[example link](https://brilliant.org)`

`> This is a quote`

Remember to wrap math in`\(`

...`\)`

or`\[`

...`\]`

to ensure proper formatting.`2 \times 3`

`2^{34}`

`a_{i-1}`

`\frac{2}{3}`

`\sqrt{2}`

`\sum_{i=1}^3`

`\sin \theta`

`\boxed{123}`

## Comments

Sort by:

TopNewest@Sean Ty just suggested me this book book

For studying trigonometry S.L Loney Part 1 and 2 are really nice

Log in to reply

@megh choksi -The books you have suggested would not serve his purpose I would ask you to suggest him books for the "SOF -IMO" he is referring to...

Log in to reply

In that case, the NCERT textbooks are more than sufficient. I would recommend going through the textbook of the immediately higher grade for the same.

Log in to reply

is there something other than SOF -IMO ?

Log in to reply

Well, haven't you heard of RMO, INMO ? I think SOFIMO doesn't require any extra knowledge other than class 10 RD SHARMA or RS AGARWAL

Log in to reply

That's right !

Log in to reply

You can visit websites of ISI, CALCUTTA and HBCSE they have list of books recommended from RMO level to IMO

Log in to reply

@avn bha can I have your email id then I can email you the list?

Log in to reply

Me too mail the list of books email id - choksimegh1@gmail.com @Subrata Saha

Log in to reply

I have mailed it

Log in to reply

@Subrata Saha

Did'nt recievedLog in to reply

Log in to reply

Mail them to me too. sualehasif996@gmail.com I would be really grateful @Subrata Saha

Log in to reply

my mail id-- avneeshbhale7@gmail.com

Log in to reply

Subrata saha -could you please mail me the list of books i have given my mail ID below

Log in to reply