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#126 Re: Help Me ! » Dinner puzzle....Please help! » 2025-02-28 14:46:31
But mathematically it seems inmpossible to make the guests meet with all each other. Lets first check it mathematically. 
#127 Re: Help Me ! » Dinner puzzle....Please help! » 2025-02-27 23:16:14
I am hosting a progressive dinner with 28 guests. They need to rotate to 4 different homes for 4 different courses. I would like everyone to meet at least once.
So it means that each guest has to get a new course. So that isn't allowed.
#128 Re: Help Me ! » Complex Quadratic » 2025-02-27 23:03:04
The quadratic formula will still work here.
How will it work here? I tried it and I couldnt simplify it.
#129 Re: Help Me ! » Dinner puzzle....Please help! » 2025-02-27 23:00:57
Why do 1, 8, 15 and 22 take the same course 4 times?
#130 Re: Help Me ! » Complex Quadratic » 2025-02-27 15:59:32
x = 13/root(-101)
or let's say: x = 13root(101)i / 101
#131 Re: Help Me ! » Dinner puzzle....Please help! » 2025-02-27 14:22:57
I tried 5 different ways to complete this but all were useless. At first I tried to match all guests with each other so thought of first making G2 meet with all. I made him meet with 16 other guests but later didn't get anything useful so left the method.
#132 Re: Help Me ! » Dinner puzzle....Please help! » 2025-02-26 00:35:46
Interesting. I will surely try it.
Why don't we use sudoku and abit algebra to solve it?
I'll try doing in paper and if I don't get the answer, I'll try python or JS.
#133 Re: Help Me ! » Dinner puzzle....Please help! » 2025-02-25 20:36:07
Can you please explain what does this puzzle really mean?
#134 Re: Dark Discussions at Cafe Infinity » Firefox 1.5 Released » 2025-02-25 20:30:32
Now firefox 135 has been launched. 
#135 Re: Dark Discussions at Cafe Infinity » malware warning » 2025-02-25 20:25:47
Ya surely I will try to help you.
Do you use linux?
#136 Re: Dark Discussions at Cafe Infinity » malware warning » 2025-02-25 00:48:47
Hi bob.
How did you figure that the link is corrupted initially?
#137 Re: Dark Discussions at Cafe Infinity » Greatest Mathematicians from 1 CE ... » 2025-02-25 00:43:52
You forgot Ramanujan
#138 Re: Help Me ! » Is velocity ever a scalar quantity? » 2025-02-25 00:31:49
Can you please explain me that dinner problem? I didn't get it.
#139 Re: Help Me ! » Cubic equation » 2025-02-22 23:08:18
Ok sinQ/cosQ
I'll visit that page while I have laptop and also will ask you the doubts I get.
#140 Help Me ! » Cubic equation » 2025-02-22 22:40:26
- ktesla39
- Replies: 2
How to solve the cubic equation?
ax3+bx2+cx+d=0
I'm confused with it.
Please help
#141 Re: Coder's Corner » Windows or Linux? » 2025-02-16 00:17:43
I didn't like Lubuntu much so installed Bodhi linux. And this was the best linux I ever used. I liked Bodhi a lot and am using for around 1 month. Now I'm comfortable with CUI environment of linux. I also learnt bash. It was awesome and I found Bodhi a lot better than windows.
#142 Re: Help Me ! » Is velocity ever a scalar quantity? » 2025-02-14 01:43:59
Yup!
I never noticed in my school about these things until I was taught about vectors. You guys are right. v should have an arrow above it when it refers to velocity and just v while it's speed as velociy is speed in particular direction.
#143 Re: Help Me ! » Trigonometry question! » 2025-02-07 14:15:44
Yep welcome!
That was a nice way to solve the question.
#144 Re: Help Me ! » Trigonometry question! » 2025-02-07 00:32:55
Ok! He did:
## soln,
70 = 50 + 20
taking tan both sides
tan70 = tan(50 + 20)
tan70 = [tan50 + tan20] / [1 - tan50.tan20]
tan70 - tan70.tan50.tan20 = tan50 + tan20
tan70 - tan(90 - 20).tan50.tan20 = tan50 + tan20
tan70 - cot20.tan50.tan20 = tan50 + tan20
tan70 - tan50 = tan50 + tan20
tan70 = 2tan50 + tan20 $$ proved
## Isn't it cool?
And I tore 18 pages for it. 
#145 Re: Introductions » Chinese seventh grader » 2025-02-05 00:21:08
Hi friend
Welcome to the forum.
#146 Re: Help Me ! » Trigonometry question! » 2025-02-05 00:19:05
Thanks guys.
My teacher gave a solution. Would you like to see?
#147 Re: Help Me ! » Trigonometry question! » 2025-02-02 15:05:19
Hi guys,
Thanks for ur answers but the question I asked was correct.
There were two questions in that exercise.
@@Prove that:
## tan(70) = 2tan(50) + tan(20)
## 2tan(70) = tan(80) - tan(10)
These two questions are similar.
These are questions from Opt. Maths of 9th grade.
#148 Help Me ! » Trigonometry question! » 2025-02-02 01:11:15
- ktesla39
- Replies: 16
Hi guys,
I have a trigonometry question that's causing me a headache. The question is:
## Prove that: tan(70) = 2tan(50) + tan(20)
I had to tear 18 pages for this question. Please help me.
#149 Re: Exercises » Compute the solution: » 2025-01-28 01:02:57
Hello,
Is the answer (131 / 2) or 65.5?
#150 Re: Help Me ! » How many integers between 1 and 999 have 3 divisors? » 2025-01-21 23:09:59
Ya I also like puzzles and complex things a lot.