# Messageboard

Note by Akshat Sharma
5 years, 3 months ago

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.

MarkdownAppears as
*italics* or _italics_ italics
**bold** or __bold__ bold
- bulleted- list
• bulleted
• list
1. numbered2. list
1. numbered
2. list
Note: you must add a full line of space before and after lists for them to show up correctly
paragraph 1paragraph 2

paragraph 1

paragraph 2

[example link](https://brilliant.org)example link
> This is a quote
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    # 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"
MathAppears 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} $\boxed{123}$

Sort by:

Do you like carrots?

- 5 years, 3 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?

- 5 years, 3 months ago

No

- 5 years, 3 months ago

I got 0.26 incorrect

- 5 years, 3 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

- 5 years, 3 months ago

Rectified my calculation mistake .

Got the answer correct

- 5 years, 3 months ago

But I won't tell you the answer

- 5 years, 3 months ago

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

- 5 years, 3 months ago

aise hi kiya tha kya ?

- 5 years, 3 months ago

You rectified your mistake, so what did you used Half Wave Rectifier or Full Wave Rectifier

- 5 years, 3 months ago

Taliyaan !!

- 5 years, 3 months ago

- 5 years, 3 months ago

Ajeeb sa question Ye kya question hai ???? Ye bad habit hai aise question nhi krte bhaskar bhaiyaa

- 5 years, 3 months ago

Sabse bakwaas question. Mein solve nahi kar paya tha.

- 5 years, 3 months ago

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

- 5 years, 3 months ago

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

- 5 years, 3 months ago

Nahi bhaiyaa hamra sahi aa gya

- 5 years, 3 months ago

tere waale method se hi galat aa raha hai

- 5 years, 3 months ago

aisa nhi ho sakta

- 5 years, 3 months ago

An = 0.5(1+2^0.5)^n + 0.5(1-2^0.5)^n

- 5 years, 3 months ago

yes

- 5 years, 3 months ago

to answer bina simplify kiye daalna hai kya

- 5 years, 3 months ago

nhi 1174

- 5 years, 3 months ago

Are hum answer change nhi kar sakte kya?? Shivam is right

- 5 years, 3 months ago

Maine dono answer daal diye.

But the answer should be changed

- 5 years, 3 months ago

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

- 5 years, 3 months ago

kr skte hain

- 5 years, 3 months ago

Kaise??

- 5 years, 3 months ago

question ko report kr de ki asnwer 300+287 hona chaiye

- 5 years, 3 months ago

tu konsa question kr diya activity set mein daal

- 5 years, 3 months ago

Abhi hi dobara chalaya hai . Tu bata de konsa set karu jaldi se???

- 5 years, 3 months ago

mereko khudko nhi mil raha tereko mile to batana

- 5 years, 3 months ago

tu question delete krke wapas se daal de

- 5 years, 3 months ago

Tera sahi hai pr answer 600/574 ka sum hoga

- 5 years, 3 months ago

OK

- 5 years, 3 months ago

300/287 answer aa raha hai

- 5 years, 3 months ago

nhi

- 5 years, 3 months ago

600/574

- 5 years, 3 months ago

ek hi to baat hai

- 5 years, 3 months ago

haan hai question ki galti hai

- 5 years, 3 months ago

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

- 5 years, 3 months ago

@Bhaskar Kumawat Activity Set mein question daalo.

- 5 years, 3 months ago

- 5 years, 3 months ago

Getting answer :0.3. Not correct

- 5 years, 3 months ago

@Harshit Jain Check This

- 5 years, 3 months ago

Abhi to kuch kiya hi nahin

- 5 years, 3 months ago

Try the problem I tried below

- 5 years, 3 months ago

I almost solved it. Still got one try

- 5 years, 3 months ago

@Harshit Jain @Deepanshu Vijay Kahan Pe ho tum dono

- 5 years, 3 months ago

- 5 years, 3 months ago

Kahan gae sab

- 5 years, 3 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

- 5 years, 3 months ago

Try This : https://projecteuler.net

- 5 years, 2 months ago

@Bhaskar Kumawat wo tum konsa game khelte ho spacecreft wala

- 5 years, 2 months ago

chup chap padh rahe honge

- 5 years, 3 months ago

Harshit Ne bola tha ki wo brilliant hi chala rha hai

- 5 years, 3 months ago