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#151 Re: Help Me ! » Proving trig identity » 2007-04-14 17:59:58
sin(phi)/ 1 or 1/sin(phi) ?
#152 Re: Exercises » Exercises » 2007-04-14 14:42:50
I am gonna give the answer to the last question.
#153 Re: Help Me ! » show that » 2007-04-14 13:57:08
Ahh, Haven't worked it out yet , but it's so close 
Now it's left to compare
WOW , What happen to my post , Something wrong with the server?
#154 Re: Dark Discussions at Cafe Infinity » Pain » 2007-04-13 09:17:27
I have had some serious injury too , one time , When I was using a dagger to pierce a plastic cover ,the dagger slipped and it pierced right through my palm. But I am sure U had more pain than me ,because when a dagger went through my palm , I couldn't feel a thing.
#155 Re: Dark Discussions at Cafe Infinity » Global Warming- It's Happening! » 2007-04-13 09:11:18
ppl are getting "hot tempered" ,does that count? lol
#156 Re: Help Me ! » Check » 2007-04-13 09:05:52
Yeah , that's what I meant.
#157 Re: Help Me ! » Check » 2007-04-13 02:21:07
I mean , a ,b are relatively prime
#158 Re: Help Me ! » Check » 2007-04-12 18:10:45
I see how commutative works~
Jane: Can I do that through proving that (a,b)=1 ?
#159 Re: Help Me ! » Check » 2007-04-12 14:59:29
Awww, I dont really understand the importance of commutative in this case?
#160 Help Me ! » Check » 2007-04-12 14:01:44
- Stanley_Marsh
- Replies: 10
Here's my proof:
#161 Re: Dark Discussions at Cafe Infinity » Sad » 2007-04-12 13:18:41
Yah , that's true~~ I won't give up my dream that easy
#162 Re: Dark Discussions at Cafe Infinity » Sad » 2007-04-12 13:13:15
All my textbook dont have answers to the questions , I have a hard time learning them.
I think they only allow people with basic maths, english and science degrees into Universety. Just study loads and you could go to Universety next year.
WHY?
#163 Re: Dark Discussions at Cafe Infinity » Sad » 2007-04-12 13:06:06
English is not my first , so I am learning math pretty slow.
#164 Re: Dark Discussions at Cafe Infinity » Sad » 2007-04-12 13:04:58
My country is China~ I don't know , actually I wanna learn by myself, but my parents are pushing ~ so , I have to find a school
#165 Re: Help Me ! » A sudden thought » 2007-04-12 13:00:45
yeah..... , Sin(pi)=0 .. Pi is quite interesting , cant be changed into rational by powering
#166 Re: Introductions » Hello » 2007-04-12 09:38:14
Hi! I am a high school student, looks like we share the same passion in math 
.
#167 Re: Introductions » About Me!! » 2007-04-12 09:35:23
KOOL to have some skilled ppl around , welcome!
#168 Dark Discussions at Cafe Infinity » Sad » 2007-04-12 09:29:31
- Stanley_Marsh
- Replies: 15
I've been in San Francisco for 4 Months now , MY English is enough for Study but not enough for SAT or ACT . I CANT GO TO UNIVERISTY!!I have to keep learning math and physics myself ....... Sad Face......I WANT SCHOOLING SO BAD.
#169 Help Me ! » A sudden thought » 2007-04-12 09:24:02
- Stanley_Marsh
- Replies: 6
Some Irrational numbers can be changed into rational by a function , like
Then what about
, If they can't be changed prove it .I first it will be interesting to put in the exercise section , but since I dont know how to prove it , so , help me?
#170 Re: Exercises » Janes exercises » 2007-04-12 09:18:57
9 ,11 are hard for me , I haven't that much knowledge of math , I just learn math randomly by myself .haha
#171 Re: Exercises » Janes exercises » 2007-04-12 09:16:53
What about Riemann zeta-function
I happened to see the Riemann zeta-function today~lol
#172 Re: Exercises » Janes exercises » 2007-04-12 02:44:16
Awwwww , Let me come up with another one.
#173 Re: Exercises » Exercises » 2007-04-12 02:38:42
You are right about both question.
About 3 you don't have to use root formula
#174 Re: Help Me ! » Help Needed » 2007-04-11 19:27:45
Why English naming is so troublesome. In China , we name it by the number of sides (Literally translate it in English (four sided shape , five sided shape ......) , , if all sides are equal then + (zheng) , in front of the name.
#175 Re: Exercises » Janes exercises » 2007-04-11 19:09:07
To 10 :