An error in the link to the answer to one of your problems posted on Facebook.

On 1-24-15 at 11 PM you posted a problem asking for value of [(1-i)/(1+i)] to the 112th power. Following the link to the web site, I found the power in the problem changed to 148th. When I entered my answer, the web site jumped me to a completely different problem and indicated my answer was wrong. This is not the first problem this has happened with. Please make sure your links are correct.

#Algebra

Note by Verlen Coy
6 years, 4 months ago

No vote yet
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} ai−1 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 sin⁡θ \sin \theta
\boxed{123} 123 \boxed{123}

Comments

Let me tag @Calvin Lin here.

Mursalin Habib - 6 years, 4 months ago

Hi Verlen, For links back into the quizzes, we store your progress that you made and show you the set that you were working on. As a result, you might end up seeing a different problem, though it is still in the same skill.

If you incorrectly answered the last problem, then it will display that you are incorrect.

Calvin Lin Staff - 6 years, 4 months ago

That.s not what happened. I was on a PARTICULAR problem on the web site. I entered my answer in the space provided for THAT problem. When I hit enter, I was taken to the answer for ANOTHER problem, and was told my answer was wrong.

Verlen Coy - 6 years, 4 months ago

Log in to reply

Hi Verlen,

Please help me trace out what happened. This is my interpretation of your described list of events

On 1-24-15 at 11 PM you posted a problem asking for value of [(1-i)/(1+i)] to the 112th power.

I believe you are referring to the Facebook post, which asks you to calculate (1−i1+i)112 \left( \frac{ 1-i} { 1+i} \right) ^ { 112 } .

Following the link to the web site, I found the power in the problem changed to 148th.

Clicking on that Facebook post you landed in the practice section of "Complex Numbers Problem Solving - Basic". We asked you to calculate (1−i1+i)148 \left( \frac{ 1-i} { 1+i} \right) ^ { 148 } . We are aware that in the practice section, you could be shown a slightly different problem.

When I entered my answer, the web site jumped me to a completely different problem and indicated my answer was wrong. This is not the first problem this has happened with. Please make sure your links are correct.

Thanks for reporting this issue. This is the first time I have heard of it, and I will need to look into what's happening.

Can you provide more details about what happened?
Do you recall which problem you were shown? Can you confirm if it is a problem regarding 7−−167+−16 \frac{ 7 - \sqrt{ -16} } { 7 + \sqrt{- 16 } } ?
Did this happen on another problem where you did not come from facebook into the practice section?

Calvin Lin Staff - 6 years, 4 months ago

Log in to reply

The problem was (1-i)/(1+i) to the 148th; the answer it jumped to was for (7-SR-16)/(7+SR-16).

Verlen Coy - 6 years, 4 months ago
×

Problem Loading...

Note Loading...

Set Loading...