Mathathon 2021 Queries and Issues

Post your queries and issues with the Mathathon 2021 here.

Note by A Former Brilliant Member
4 months, 3 weeks ago

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1 vote

  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.

MarkdownAppears as
*italics* or _italics_ italics
**bold** or __bold__ bold

- bulleted
- list

  • bulleted
  • list

1. numbered
2. 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 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"
MathAppears as
Remember to wrap math in \( ... \) or \[ ... \] to ensure proper formatting.
2 \times 3 2×3 2 \times 3
2^{34} 234 2^{34}
a_{i-1} ai1 a_{i-1}
\frac{2}{3} 23 \frac{2}{3}
\sqrt{2} 2 \sqrt{2}
\sum_{i=1}^3 i=13 \sum_{i=1}^3
\sin \theta sinθ \sin \theta
\boxed{123} 123 \boxed{123}

Comments

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Hi @Percy Jackson, When will the final problem be posted?

Atin Gupta - 4 months ago

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Posted. Sorry, I really messed up the schedule. All problems are here now.

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Okay... but IDK how to solve integrals. Can I take some help?

Atin Gupta - 4 months ago

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When will the results be posted??

Atin Gupta - 3 months, 3 weeks ago

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Still waiting, @Percy Jackson

Atin Gupta - 3 months, 1 week ago

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Can we write on paper and send a scanned photo? Don't worry, my handwriting is legible :D

Atin Gupta - 4 months, 2 weeks ago

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Sure, anything is fine as long as is understandable. You will have to draw diagrams if necessary. Points will be awarded accordingly :)

A Former Brilliant Member - 4 months, 2 weeks ago

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Okay

Atin Gupta - 4 months, 2 weeks ago

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Also, can we code the answer??

Atin Gupta - 4 months, 2 weeks ago

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Yes, but a proper solution will gain more points.

A Former Brilliant Member - 4 months, 2 weeks ago

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Any extra credit for both?

Atin Gupta - 4 months, 2 weeks ago

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@Atin Gupta Not unless your code solves the problem in a unique way. Then extra Ingenuity points will be given. Otherwise no.

A Former Brilliant Member - 4 months, 2 weeks ago

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@A Former Brilliant Member Okay

Atin Gupta - 4 months, 2 weeks ago

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What is the estimated "portion"?

Atin Gupta - 4 months, 2 weeks ago

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I don't know things like integration, but I do know trigonometry, for example. So if I do not post solutions for such problems, is it fine?

Atin Gupta - 4 months, 2 weeks ago

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Yes, but you will lose those points. Questions will not be too difficult.

A Former Brilliant Member - 4 months, 2 weeks ago

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@A Former Brilliant Member Okay

Atin Gupta - 4 months, 2 weeks ago

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Math. All math. Algebra, Geometry, Probability, Trigonometry, Calculus etc. Don't worry about the last two, most will be Algebra and Geometry problems. You can try the sample problem i posted :)

A Former Brilliant Member - 4 months, 2 weeks ago

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Yeah, I did that. But my solution was similar to yours, so I won't post one until I find a good way!

Atin Gupta - 4 months, 2 weeks ago

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I would love to participate but I’ve just found out about this today, is it too late ?

Ethan Hardcastle - 4 months, 2 weeks ago

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I am sorry but yes, the participant limit has been reached. I will ping you if anyone wants out of the contest :)

A Former Brilliant Member - 4 months, 2 weeks ago

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Reassure me : during the mathathon, answers posted by competitors won't be available for reading before April the 2nd 2^{nd}.
Is that true ?

Guillaume MARTIN - 4 months, 2 weeks ago

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No, the problems and solutions will be open to everyone on brilliant.org.

A Former Brilliant Member - 4 months, 2 weeks ago

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So, how do you prevent a competitor "to be inspired" by already posted explanation ?

Guillaume MARTIN - 4 months, 2 weeks ago

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@Guillaume Martin I don't. If a competitor tries to give a similar answer to an already posted clever answer, they risk being caught because of the similarity, or risk losing clarity points due to not being able to replicate the answer. If they understand the concept clear enough to properly replicate a solution, shouldn't they be smart enough to think of it in the first place? That way, they risk losing even more points trying to copy ans answer, and that is why most won't try that. As such there is no way I can prevent others from seeing your solutions in a contest, unless I shared my email, which I would rather not :)

A Former Brilliant Member - 4 months, 2 weeks ago

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Reminder: if a member leaves, I can joint to mathathon

Elijah Frank - 4 months, 2 weeks ago

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👍

A Former Brilliant Member - 4 months, 2 weeks ago

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Did I miss something, or have only three problems been posted so far?

Morris Pearl - 4 months, 1 week ago

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Only three, I was a bit busy, I will post the rest today.

A Former Brilliant Member - 4 months, 1 week ago

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Hi, where have the problems been posted ??

Sundar R - 4 months, 1 week ago

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Only 3 have been posted so far. You can find them in my profile or in the Mathathon links page.

A Former Brilliant Member - 4 months, 1 week ago

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Where have they been posted ??

Sundar R - 4 months, 1 week ago

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@Sundar R The links to problems can be found here

A Former Brilliant Member - 4 months, 1 week ago

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@A Former Brilliant Member Thanks. When i asked the second time, i did not see any reply. Thanks once again !!

Sundar R - 4 months, 1 week ago

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@Sundar R Okay, no problem :)

A Former Brilliant Member - 4 months, 1 week ago

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Hi! With everything you have to do, I just wanted to point out that the problems 4-5 are on your profile but not on the Mathathon links page. Keep up the good work, you are amazing!!

Julie Éthier - 4 months, 1 week ago

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Yes, I will add them...

A Former Brilliant Member - 4 months, 1 week ago

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Hi Percy, I may not be available until this weekend :( if you are to give points before that time I may have to just quit halfway through :P

Jeff Giff - 4 months ago

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Today is the last day to post your solutions.

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Well you can give points now :) I’m posting the rest at the weekend :) I’ll just quit now :/

Jeff Giff - 4 months ago

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I would like to participate

Sundar R - 4 months, 3 weeks ago

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You have been added sir :)

A Former Brilliant Member - 4 months, 2 weeks ago

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Thanks

Sundar R - 4 months, 2 weeks ago

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@Percy Jackson In problem 7, is the angle given between the ground and the birds line of view or between the tree and the line of view.

Aditya Mittal - 4 months, 1 week ago

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Angle of depression from bird to the lion and elephant. Try to draw a diagram, it will be clearer.

A Former Brilliant Member - 4 months, 1 week ago

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