Math help - Page 2

**Sheriff Ice** · 12-17-2009

2 years ago i would solve it in 2 sec

i have been away from math and formulas for almost 3 years,
I have to start studying these again, my master studies relies purely on math analysis.

**Kingroudy** · 12-17-2009

sin^2+cos^2=1
get cos and use the third quadrant hint
tan=sin/cos and kick your playstation

Adam · 12-17-2009

Quote:

Originally Posted by Kingroudy

sin^2+cos^2=1
get cos and use the third quadrant hint
tan=sin/cos

Thanks

Quote:

Originally Posted by Kingroudy

and kick your playstation

Hey

I'd kick myself in the nuts before I kick my Playstation

Adam · 05-10-2010

My teacher just sent me an e-mail saying this is wrong. But I can't find the error.
Is there a genius in shining armour who can tell me if I'm correct?

z=a+bi
z+iz=3

3=a+bi+ai+bi^2
3=a+bi+ai-b

3=a-b
0=a+b
b=-a
3=a-(-a)=2a
a=1,5
b=-a=-1,5

z=a+bi=1,5-1,5i

RUSSIAN · 11-08-2010

I also need some help.

Adam · 11-08-2010

Quote:

Originally Posted by RUSSIAN

I also need some help.

Code:

http://www.wolframalpha.com/input/?i=int+e^%28-x%29*x^2+from+0+to+infinity

Try calculating the root and replace infinity with it.

12-17-2009	#11
Sheriff Ice info@sync.com.lb Last Online: 11-29-2020 Join Date: Apr 2006 Posts: 3,827 Thanks: 1,348 Thanked 2,391 Times in 1,306 Posts Groans: 0 Groaned at 16 Times in 15 Posts	2 years ago i would solve it in 2 sec i have been away from math and formulas for almost 3 years, I have to start studying these again, my master studies relies purely on math analysis. __________________ http://www.gamync.com Lebanese Produced Mobiles Games by http://www.sync.com.lb

12-17-2009	#12
Kingroudy Super Moderator Last Online: 02-16-2022 Join Date: May 2006 Posts: 5,580 Thanks: 1,888 Thanked 2,653 Times in 1,593 Posts Groans: 55 Groaned at 35 Times in 32 Posts	sin^2+cos^2=1 get cos and use the third quadrant hint tan=sin/cos and kick your playstation __________________ click on 'Groan' to switch to my left testicle.

11-08-2010	#15
RUSSIAN Registered Member Last Online: 10-08-2023 Join Date: Nov 2009 Posts: 569 Thanks: 838 Thanked 232 Times in 174 Posts Groans: 24 Groaned at 16 Times in 13 Posts	I also need some help. __________________ What about a 500+ symbols long, colored signature with URL allowed and size limited to 7?

05-10-2010	#14
Adam Registered Member Last Online: 06-03-2013 Join Date: Feb 2008 Posts: 1,410 Thanks: 1,444 Thanked 1,235 Times in 689 Posts Groans: 25 Groaned at 21 Times in 19 Posts	My teacher just sent me an e-mail saying this is wrong. But I can't find the error. Is there a genius in shining armour who can tell me if I'm correct? z=a+bi z+iz=3 3=a+bi+ai+bi^2 3=a+bi+ai-b 3=a-b 0=a+b b=-a 3=a-(-a)=2a a=1,5 b=-a=-1,5 z=a+bi=1,5-1,5i

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