View Full Version : Math questions

mehrdad368

30-09-2006, 05:19 PM

I'll ask you some question.you make score for yourself with answering right.and also you can ask your questions here.

1.If X-->0 then Lim (2x-sinx)/(2x+sinx)=?

1)1 2)1/2 3)1/3 4)0

2.If f`(x)=1/x y`=f(5x)=?

1)1 2)1/x 3)2x 4)0

Digital_Ice

30-09-2006, 05:53 PM

question 1 - 0

question 2 - 1

deviljet88

01-10-2006, 02:18 AM

(sin theta / 1 + cos theta) + [(1 + cos theta)/ sin theta]

Anyone know how I can get that to 2 cosec theta?

Renegade

01-10-2006, 05:38 AM

Ah, good old trigonometry. Killed my GPA back in high school.

barrington

01-10-2006, 09:57 AM

This looks like homework help, not general discussion.

Where's the value in this thread?

Digital_Ice

01-10-2006, 03:25 PM

heh

i was wondering that, my original post was going to be "stop making us do your homework"

or words to that effect.

hasselbrad

02-10-2006, 07:08 PM

1. chair

2. halibut

You're welcome. :p

mehrdad368

04-10-2006, 08:07 AM

Don't worry,It's not my homework,I passed this last year.Just for realize your IQ.;)

Anyway:

answer 1 : lim (2x-sinx)/(2x+sinx) = lim x(2- (sinx/x))/x(2+(sinx/x)) = (2-1)/(2+1) =1/3

so Question 1: 3

answer 2 : y`=5f`(5x)=5(1/5x)=1/x

so Question 2: 2

I realized your IQ.:D

mehrdad368

04-10-2006, 08:19 AM

And another one:

If f(x): (x+1).h(x)/(2x+1).h(2x+1) f(-1)=?

1)1/x 2)-1 3)3 4)2x

Digital_Ice

04-10-2006, 09:07 AM

no one cares.

Foeni

04-10-2006, 09:39 AM

Don't worry,It's not my homework,I passed this last year.Just for realize your IQ.;)

You can't find someone's IQ just by asking these questions.

Digital_Ice

04-10-2006, 09:59 AM

i always find that the question "What's your IQ?" gives better results

mehrdad368

05-10-2006, 05:18 PM

It's best way.And it shows your sub-zero IQ.;):D

Don't change the topic when you cann't answer this questions.

Foeni

06-10-2006, 04:01 PM

So you're implying that people that aren't interested in math and/or don't have a talent for math are stupid?? I know a lot of people much smarter than you that don't know shit about math.

Digital_Ice

06-10-2006, 07:29 PM

i know math... i just cant be arsed with such pointless threads.

Foeni

07-10-2006, 09:26 AM

i know math... i just cant be arsed with such pointless threads.

Same.

Prove it. Answer the question.

barrington

07-10-2006, 12:39 PM

Bonk.

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