Topic, Offtopic post

You must register or log in to post a message.

Durn, before you know it, this forum will reach 7,000 posts. But it won't happen until maybe around Christmas.

Hey, I took a 10 day break and caught up on sleep/rest. My mom's birthday is today so we're eating pizza and for dessert we are going to eat a vanilla cake with icing/sprinkles.

Coolguy52 4 months ago

I do enjoy maths problems but I think a formal competition is a bit much. The odd question here and there is cool but at the end of the day I don’t expect much interest.

john96 4 months ago

Maybe we should all have a math competition one day for fun. If that's okay with you guys.

Coolguy52 4 months ago

Geometry questions are difficult to pose in this format, so unfortunately for you I can’t easily provide one. I am generally quite good at most branches of mathematics at high school level, although I will say that geometric questions can sometimes trip me up if I didn’t spot the method correctly. I found high school algebra and calculus to be a bit more procedural and therefore easier to find the solution. I think finding anti-derivatives (integrating a function) is the one example where this is a bit less procedural but I don’t often struggle here either, unless the function is very weird.

PuzzleFan 4 months ago

I'm not really that good at advanced math class. I was good at geometry, but calculus and algebra 2, no.

suhangha 4 months ago

Exactly Correct, cool guy, This means that the number of messages was 6859.

Coolguy52 4 months ago

I'm not sure if I understand your question correctly, but:

SPOILER

suhangha 4 months ago

solution is a pair of answer
Both values were sine & cosine (one-twelfth & five-twelfth pi)

guess a natural number 'x' that it's nth-root of number that is close to the current topic count, and also together that 'n' at the "'n'th-root" ; where both x and n is less than 20

Coolguy52 4 months ago

I'm glad you noticed the trigonometric link, that was actually my inspiration for these equations. I wanted to make x and y being exact values for sine and cosine of pi/12, so the equations are a unit circle (Pythagorean identity) and related to the double angle formula as you noticed. My method for solving algebraically was slightly different, but yours reduces the complexity a lot sooner than mine, and at a point you need to realise that sqrt(2+sqrt(3))=(sqrt(2)+sqrt(6))/2, which is not immediately obvious. I will post that method if anyone wants as an edit to this message.

nelson90 4 months ago

There are at least 2 ways of solving this set of equations.

first solution:

SPOILER

second solution:

SPOILER

Due to the symmetry of the equations in x and y, there is another solution obtained by swapping the values of x and y.

Coolguy52 4 months ago

36=2^2*3^2 (not prime), 361=19^2 (not prime).

Try to solve for x and y, where x and y are positive:

4xy=1, x^2+y^2=1

chris3000 4 months ago

It's been so nice being at home and not having to be woken up every 3-4 hours in the ER. You can't get any rest there.

suhangha 5 months ago

try to prove whether 36 is prime or not. must be easy for you ||||| try 361 too

chris3000 5 months ago

Hello, what's up? Did everyone have a good Mother's day holiday? Never forget your mom on that special day. I earned a valuable lesson about my selfishness.

john96 6 months ago

Mine are Snoopy, Woodstock, Linus and Patty.

chris3000 6 months ago

What are your favorite characters in "The Peanuts?"
Mine is Charlie Brown, Patty, Lucy and Snoopy

Coolguy52 6 months ago

Ok. Hint for second method below:

SPOILER

Solving these kinds of equations is not always easy because it's not necessarily got one answer that you can just find with normal algebra. It's also kind of hard to give proper hints without displaying most of the methods.

chris3000 6 months ago

I'll figure that problem out later, or if you want to give us another hint. Maybe someone other than me can solve that one.

Coolguy52 7 months ago

There are two ways to find the three answers where both a and b are positive whole numbers and a>b.

SPOILER

chris3000 7 months ago

The solution to your equation John is 13. Now let's solve CG's equation, can we have a hint please in a spoiler?

Coolguy52 7 months ago

3x+(-8+8)=31+8
3x=39
3x/3=39/3
x=13.

If a+b+ab=35, solve for a and b as whole numbers and a>b>0.

john96 7 months ago

Solve for x.

3x-8=31

chris3000 7 months ago

Harry Potter is one of my favorite book series. What are your favorite books to read? And by what author? I also like the movies about Harry Potter and his friends at Hogwarts.

chris3000 9 months ago

My grandparents get on my nerves so bad. My grandma is evil, greedy and selfish. She takes half my grandpa's money which me and my mom need for food, medicine, supplies and other requirements for our daily lives.

chris3000 10 months ago

It is the start of a new fresh year, 2024!

PuzzleFan 10 months ago

I had a wonderful holiday Chris, thanks for asking. We sat near the fireplace and read some books and ate some cake. It was cold some nights, we had to bundle up under the blankets.

chris3000 10 months ago

Well, did everyone have an enjoyable, relaxing Christmas this year? We certainly did, me and my mother. We played some board games and ate some Christmas cookies.

chris3000 10 months ago

I just realized I'm almost at Level 77!

suhangha-2 10 months ago

Top member ranked 5!

[<<] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] [49] [50] [51] [52] [53] [54] [55] [56] [57] [58] [59] [60] [61] [62] [63] [64] [65] [66] [67] [68] [69] [70] [71] [72] [73] [74] [75] [76] [77] [78] [79] [80] [81] [82] [83] [84] [85] [86] [87] [88] [89] [90] [91] [92] [93] [94] [95] [96] [97] [98] [99] [100] [101] ...[>>]

niimporta 15 years ago

Here you can post EVERYTHING you wan't.
So, let's GO!

**!!Knobs are allowed, but only if you use them with parsimony!!**

Ideas to post:

Pictures of the editor of levels
Something about games
Interesting stuff (like The canopener has been invented 42 years after the can)
Funny things
Funny Pictures
Funny videos
Funny histories
Or not funny histories
Spam (like PIE PIE PIE...)
and more..
Weird thing from other language (like PIE means feet in spanish..)
Do what U wan't, but don't insult!
And no flooding, we don't want to get drowned in messages (flooding = posting big messages)

visits from

Visitors on this topic, 52 minutes after the topic was created*

Topic, Offtopic post

You must register or log in to post a message.

General

First post of the topic