Messageboard

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

Do you like carrots?

Nihar Mahajan - 5 years, 2 months ago

i like carrots,the sound of the crunch helps in concentrating.

BTW, what is the reason that you ask everyone about their affinity towards carrots?

Satyabrata Dash - 5 years, 2 months ago

Akshat Sharma - 5 years, 2 months ago

I got 0.26 incorrect

Shivam Mittal - 5 years, 2 months ago

aise hi kara kya

2TSinx=u(l1)g ?

and T+u(l2)g sinx=u(l2)g Cosx k

where l1 is hanging part and l2 is part in contact. required value is maximum of (l1)/2(l2) which comes out to be (sinxcosx-sin^2x)?

u= linear mass density k is friction coefficient

Bhaskar Kumawat - 5 years, 2 months ago

Rectified my calculation mistake .

Got the answer correct

Shivam Mittal - 5 years, 2 months ago

@Shivam Mittal – But I won't tell you the answer

Shivam Mittal - 5 years, 2 months ago

@Shivam Mittal – shaayad. As far as I can tell Maine to sinQ cosQ ka lafda kiya tha

Shivam Mittal - 5 years, 2 months ago

@Shivam Mittal – aise hi kiya tha kya ?

Bhaskar Kumawat - 5 years, 2 months ago

@Shivam Mittal – You rectified your mistake, so what did you used Half Wave Rectifier or Full Wave Rectifier

Akshat Sharma - 5 years, 2 months ago

@Akshat Sharma – Taliyaan !!

Bhaskar Kumawat - 5 years, 2 months ago

@Bhaskar Kumawat – Dhanyawad :D

Akshat Sharma - 5 years, 2 months ago

@Bhaskar Kumawat – Ajeeb sa question Ye kya question hai ???? Ye bad habit hai aise question nhi krte bhaskar bhaiyaa

Akshat Sharma - 5 years, 2 months ago

@Akshat Sharma – Sabse bakwaas question. Mein solve nahi kar paya tha.

Bhaskar Kumawat - 5 years, 2 months ago

@Bhaskar Kumawat @Deepanshu Vijay @Harshit Jain @Shivam Mittal We can talk here!

Akshat Sharma - 5 years, 2 months ago

Bhaskar I got the answer of that question. check your method again

Harshit Jain - 5 years, 2 months ago

@Harshit Jain Jain tere waale recurrence question ka answer to incorrect aa raha hai

Shivam Mittal - 5 years, 2 months ago

@Shivam Mittal – Nahi bhaiyaa hamra sahi aa gya

Akshat Sharma - 5 years, 2 months ago

@Akshat Sharma – tere waale method se hi galat aa raha hai

Shivam Mittal - 5 years, 2 months ago

@Shivam Mittal – aisa nhi ho sakta

Akshat Sharma - 5 years, 2 months ago

@Akshat Sharma – An = 0.5(1+2^0.5)^n + 0.5(1-2^0.5)^n

Shivam Mittal - 5 years, 2 months ago

@Shivam Mittal – yes

Akshat Sharma - 5 years, 2 months ago

@Akshat Sharma – to answer bina simplify kiye daalna hai kya

Shivam Mittal - 5 years, 2 months ago

@Shivam Mittal – nhi 1174

Akshat Sharma - 5 years, 2 months ago

@Akshat Sharma – Are hum answer change nhi kar sakte kya?? Shivam is right

Harshit Jain - 5 years, 2 months ago

@Harshit Jain – Maine dono answer daal diye.

But the answer should be changed

Shivam Mittal - 5 years, 2 months ago

@Shivam Mittal – I have posted a new problem try that and if you are not able to solve like that.

Harshit Jain - 5 years, 2 months ago

@Harshit Jain – kr skte hain

Akshat Sharma - 5 years, 2 months ago

@Akshat Sharma – Kaise??

Harshit Jain - 5 years, 2 months ago

@Harshit Jain – question ko report kr de ki asnwer 300+287 hona chaiye

Akshat Sharma - 5 years, 2 months ago

@Harshit Jain – tu konsa question kr diya activity set mein daal

Akshat Sharma - 5 years, 2 months ago

@Akshat Sharma – Abhi hi dobara chalaya hai . Tu bata de konsa set karu jaldi se???

Harshit Jain - 5 years, 2 months ago

@Harshit Jain – mereko khudko nhi mil raha tereko mile to batana

Akshat Sharma - 5 years, 2 months ago

@Harshit Jain – tu question delete krke wapas se daal de

Akshat Sharma - 5 years, 2 months ago

@Shivam Mittal – Tera sahi hai pr answer 600/574 ka sum hoga

Akshat Sharma - 5 years, 2 months ago

@Akshat Sharma – OK

Shivam Mittal - 5 years, 2 months ago

@Shivam Mittal – 300/287 answer aa raha hai

Shivam Mittal - 5 years, 2 months ago

@Shivam Mittal – nhi

Akshat Sharma - 5 years, 2 months ago

@Akshat Sharma – 600/574

Akshat Sharma - 5 years, 2 months ago

@Akshat Sharma – ek hi to baat hai

Shivam Mittal - 5 years, 2 months ago

@Shivam Mittal – haan hai question ki galti hai

Akshat Sharma - 5 years, 2 months ago

Harshit tu recurrence ko edit kr uska answer 600/574 aa rha tha to usko 300/287 to bhi likh sakte hian

Akshat Sharma - 5 years, 2 months ago

@Bhaskar Kumawat Activity Set mein question daalo.

Akshat Sharma - 5 years, 2 months ago

Trying to solve this

Bhaskar Kumawat - 5 years, 2 months ago

Getting answer :0.3. Not correct

Bhaskar Kumawat - 5 years, 2 months ago

@Harshit Jain Check This

Akshat Sharma - 5 years, 2 months ago

Abhi to kuch kiya hi nahin

Shivam Mittal - 5 years, 2 months ago

Try the problem I tried below

Bhaskar Kumawat - 5 years, 2 months ago

I almost solved it. Still got one try

Bhaskar Kumawat - 5 years, 2 months ago

@Harshit Jain @Deepanshu Vijay Kahan Pe ho tum dono

Akshat Sharma - 5 years, 2 months ago

@Harshit Jain Question

Akshat Sharma - 5 years, 2 months ago

Kahan gae sab

Akshat Sharma - 5 years, 2 months ago

Let's prove that angle a+angle b+angle c=90° It is obvious that angle c=45°(it is the diagonal of a square) Next we evaluate the segments. Let the shorter side be a and the longer 3a(we know it from the task) it is easy to see that the first segment is a×sqrt2 next one a×sqrt5 and the last axsqrt10. Now we'll prove that they are similar(the triangles) a×sqrt5/a×sqrt2=a×sqrt10/a×sqrt5 since 2 pairs and proportiante they are similar so their angles must be the same from all the we get that angle a+angle b=45° which was to be proven

Dragan Marković - 5 years, 2 months ago

Try This : https://projecteuler.net

Bhaskar Kumawat - 5 years, 1 month ago

@Bhaskar Kumawat wo tum konsa game khelte ho spacecreft wala

Akshat Sharma - 5 years, 1 month ago

chup chap padh rahe honge

Shivam Mittal - 5 years, 2 months ago

Harshit Ne bola tha ki wo brilliant hi chala rha hai

Akshat Sharma - 5 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}`	$\boxed{123}$