Melody

921 Questions
34316 Answers

+1

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1742

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Mathigon website

I just discovered a site called mathigon

https://mathigon.org/dashboard
read more ..

Melody Apr 2, 2022

-8

610

1

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Reporting problems.

There are a number of people having problems at the moment.
If you lodge an error can you please give all relevant information that you can think of.
Where you are in the world - the city or the country - is often very important information. read more ..

Melody Mar 16, 2022

-2

8

1481

5

+118730

How to make an empty rectangle in Latex

I just worked out how to make an empty box of various horizonal size easily in LaTex.
This is not a recommended method, but other methods that I have tried here have not worked.
This coding is really simple. Just put letters inside read more ..

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Melody Mar 15, 2022

-3

873

3

+118730

HAPPY ANNIVERSARY CHRIS! (CPhill)

I just realized that you became a member here exactly 8 years ago today!

It has been great to have you here all that time

off-topic

Melody Mar 13, 2022

-4

850

3

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WELCOME BACK CPHILL !

Melody Feb 11, 2022

-5

719

2

+118730

Very interesting question. No high level maths required.

This question was posted a couple of days ago.
https://web2.0calc.com/questions/geometry_73561

I think it is really interesting. It looks much more difficult than it really needs to be. read more ..

Melody Feb 1, 2022

-7

888

11

+118730

Members have a better experience. Their questions get more attention.

Almost everyone is posting as a guest.
If you post as a member your questions will have a far greater chance of a timely and helpful response.
If you are a genuine learner and interact with us, you will become known and answerers will do read more ..

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Melody Jan 9, 2022

-6

1

998

3

+118730

HAPPY BIRTHDAY CHRIS!

Melody Dec 20, 2021

+5

16

5574

9

+118730

Some guidelines for question askers.

Please note:
1) Ask only one question per post.
2) When asking a question talk about what you have tried for yourself. Then people will take you more seriously and will be more able and willing to help.
3) If you get an answer read more ..

off-topic

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Melody Nov 4, 2021

-9

1093

1

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Remeniscing - a little historical humour.

I just found this old post that some of you, who have been around for a while, might find amusing.

https://web2.0calc.com/questions/look-at-the-new-leader-board

off-topic

Melody Oct 29, 2021

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0

logarithm is a power (or exponent)

If you are really interestend work through this web page

http://www.mathsisfun.com/algebra/exponents-logarithms.html

MelodyNov 15, 2013

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0

2293 is what % of 3436

2293/3436*100%

MelodyNov 15, 2013

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can someone show me how to solve this identity:
csc^4(x)-cot^4(x)=(2csc^2)-1
note: you can only work on one side
additional info: 1+cot^2(x)=csc^2(x), 1+tan^2(x)=sec^2(x)

I am having problems with this one
You have left out an x on the right hand side,
Could you just double check that the rest of the question is written down correctly.
Thanks.

MelodyNov 15, 2013

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0

how do you convert m/s to rad/sec

If you know the radius in metres

then x m/s = x/radius radians/sec

MelodyNov 15, 2013

+118730

0

You can't unless you know the radius.
radians is an angular measure.

MelodyNov 15, 2013

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I have absolutely no idea but I did find this webpage. Good luck with this.

http://www.godlikeproductions.com/forum1/message577082/pg1

MelodyNov 14, 2013

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I answered this for one of your classmates already.

MelodyNov 14, 2013

+118730

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First multiply both sides by 4 then it might be easy.

MelodyNov 14, 2013

+118730

0

-r - (-7) = 16

-r + 7 = 16

-r = 9

r = -9

MelodyNov 14, 2013