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## #1 Help Me ! » what is the the Radius of a Square in a circle? and how to calculate » 2017-10-03 14:27:38

Hannibal lecter
Replies: 1

Hi,

what is the the Radius of a Square in a circle? and how to calculate  it?

## #2 Help Me ! » what is area of a square of side x in English terms? » 2017-07-26 12:06:54

Hannibal lecter
Replies: 1

Hi, what is  "area of a square of side x " in English terms?

what is the side x, can anyone draw it for my or anything, please

## #3 Help Me ! » how to know the order of an recurrence relation » 2017-06-16 14:42:55

Hannibal lecter
Replies: 0

Hi, I'm in a hurry,
how to find order of an recurrence relation
for example :
an= an-1 + an^2-2
there order of this function is "2"

how is that be?
and what is the meaning of order

## #4 Help Me ! » oh god help me » 2017-04-14 12:50:38

Hannibal lecter
Replies: 2

why I can't understand the theorem of   (Solving Linear Homogeneous Recurrence Relations
with Constant Coefficients)

what is that mean!????????????

what can I do if I read something and didn't understand about it... who can I ask for help??

## #5 Help Me ! » Linear Recurrence Equation and Linear equations » 2017-04-02 10:29:01

Hannibal lecter
Replies: 1

Hi, is the a difference between Linear Recurrence Equation and Linear equations???

or they are the same..?

and what is the Linear Recurrence Equation ?

and the important thing I need to know about is : How do we know if it is Linear Recurrence Equation or non-linear?

## #6 Re: Help Me ! » HI please solve this absolute value equation with interval notation .. » 2017-02-02 10:48:26

I wrote it in the exam {k = -4}, {k = 1} like you did, and my teacher did,
but I copy it wrong here for you believe me! ....
these number not important,

the important is... the first step cause he want the first step to be right...

so,

and not the lim L.H.S = lim R.H.S ( like I said)

so the teacher is right in the first step right?

he don't want the  final answer.. he want the first step, he is make excuses to give me 0 ....
so now I can't say

???

## #7 Re: Help Me ! » HI please solve this absolute value equation with interval notation .. » 2017-02-02 08:05:38

tell me please everything in one post. I have to finish what began.

## #8 Re: Help Me ! » HI please solve this absolute value equation with interval notation .. » 2017-02-01 21:57:20

this is the problem in Q2 see it please :

## #9 Maths Is Fun - Suggestions and Comments » why the tie zone there is not Iraq? » 2017-02-01 09:46:23

Hannibal lecter
Replies: 1

Hi,

for the time zone sitting?

cause I can't know the real time from this website topics and comments time

## #10 Re: Help Me ! » HI please solve this absolute value equation with interval notation .. » 2017-02-01 09:39:19

I need scientific reasons to proof my solution that is right and not wrong,

because the the Associate Dean for Academic Affairs((he is an professor in mathematics)) and the Dean of the university

please help me they all against me, they say the end of the result is right but when I said ( Limit R.H.S = limit L.H.S) that wrong and you must write it (LIMIT L.H.S = f(0) )  .

please ! I'm weak and they are Dr and  Professor and lecturer all against me or against one that maybe wrote a simple mistake

## #11 Re: Help Me ! » HI please solve this absolute value equation with interval notation .. » 2017-01-31 10:16:19

I don't have any Idea please help me the course will end in the end of the week so I will not be able to change my marks......

How is that be?

## #13 Re: Help Me ! » HI please solve this absolute value equation with interval notation .. » 2017-01-30 12:01:21

but I saw a lot of textbook that,  they toke the Limit or the R.H.S cause x ≠0 she these example please :

http://archives.math.utk.edu/visual.calculus/1/continuous.5/

https://www.math.ucdavis.edu/~kouba/CalcOneDIRECTORY/continuitydirectory/Continuity.html

## #14 Re: Help Me ! » HI please solve this absolute value equation with interval notation .. » 2017-01-30 09:53:36

if the Limit does not exist can we say just k^2+3k-3 = 0  (just make it equal to zero then find the solution it if can be)

or we can't?...................(1)

so now I understand.... the limit does not exist because x approaches to 0

.I'm afraid maybe he will change his answer again and tell me like what did you told me and he will say you must write in your paper (there is no way to find k ...............(2)  ) (

thank you very much

## #15 Re: Help Me ! » HI please solve this absolute value equation with interval notation .. » 2017-01-30 08:46:29

bobbym wrote:

do you mean when I have x in the second H.S I can't tell (limit L.H.S = limit R.H.S)
I have to say ( f(0) = R.H.S)

I did not say that. There are so many things wrong with his question it is difficult to explain away each one.

no no sorry I didn't mean by that.. I just asked a question ( do you mean ...)

sorry it is my bad language and I didn't understand you so well because my bad translation sorry again...
it was just a question,...

so what is the correct answer..
and what is the wrong in his question

if the question was wrong how do I'll get the 10 marks hehe!!
and what is the k value???

## #16 Re: Help Me ! » HI please solve this absolute value equation with interval notation .. » 2017-01-30 08:12:15

bobbym wrote:

In this position, do I have to take the limit R.H.S or the f(0)?

As I understand them those two things are not interchangeable.

do you mean when I have x in the second H.S I can't tell (limit L.H.S = limit R.H.S)
I have to say ( f(0) = R.H.S)

cause when we will have x inside this so : (xk^2+k-3)

and when we will take the limit L.H.S = Limit R.HS s0 ..
limit x+1 = limit xk^2+k-3       ((x apro to 0)
1= 0 + k- 3
k=1+3 = 4

is that right? or it will be wrong...

## #17 Re: Help Me ! » HI please solve this absolute value equation with interval notation .. » 2017-01-29 20:36:29

I told him it is the same, He told you did a crime in mathematics science when you wrote it like that!!!
He want excuses just that..
anyway lets close this section I'll will deal with that problem and I will refer my rights in my way
_____________

I have another question please ...
lets suppose there is x in the question (xk^2+3k-3)
In this position, do I have to take the limit R.H.S or the f(0)?

## #18 Re: Help Me ! » HI please solve this absolute value equation with interval notation .. » 2017-01-29 10:42:14

no no no ,

He is said my solution is wrong cause I toke  L.H.S = R.H.S to find k value
he said you must write it like this  lim L.H.S {which x+1} = f(0) {which it K^2+3k-3)

not Lim L.H.S  {which x+1} = Limit R.H.S which it K^2+3k-3}

you do understand what he is saying ...

## #19 Re: Help Me ! » HI please solve this absolute value equation with interval notation .. » 2017-01-29 10:09:16

yes it is .. sorry I don't care for the R.H.S and L.H.S I changed between them every time cause I forget always what is the L.H.S and R.H.S

anyway he said f(0) =L.H.S (it is the K^2+3K-3)
and so it is 1=it is the K^2+3K-3.............,

he said to me it is not  Limit R.H.S ( x+1) = Limit L.H.S (K^2+3K-3)

and you said he is wrong too

so how he is wrong in that part?
and it is the same result so why he is doing that

## #20 Introductions » Helloooo! » 2017-01-29 09:07:10

Hannibal lecter
Replies: 2

nice to me all here

## #21 Re: Help Me ! » HI please solve this absolute value equation with interval notation .. » 2017-01-29 08:39:26

Please tell me answers that I can tell these answers to him so I can defend my right and myself please explain to me why wrong...
please I need these 10 marks , I need the prove of his wrong

and thank you cause you told me he is wrong now I'm more quietly and relaxing

## #22 Re: Help Me ! » HI please solve this absolute value equation with interval notation .. » 2017-01-29 03:42:33

I talked and discussed to him today but he changed his answer  to this! :-  see this is my sol in red color and his solution in blue color

He said you must take f(0) = R.H.S then find k not L.H.S=R.H.S,

what is that crazy man talking about????????  even he is right but it is the same result????
and he didn't teach us to do that I swear in god!!!

## #23 Coder's Corner » I need to learn java language "Arrays",.. » 2017-01-28 11:35:47

Hannibal lecter
Replies: 1

Hi I need to learn java language "Arrays"
from zero, cause I don't know how to use arrays I'mm fully not understaing this topic in java

## #24 Re: Help Me ! » HI please solve this absolute value equation with interval notation .. » 2017-01-27 21:46:33

zetafunc wrote:

Draw a graph of this polynomial and label it to find out when that polynomial goes above the x-axis.

I'm not sure what you are trying to do with the line "(x-3) > 0". If you consider the cases x ≥ 3 and x < 3 separately, you won't need to do this.

Hi, can you please teach me ho to draw a qraph for this? and how to find a full solution in an
actual way?

please we have a two more exams and we always get like these questions ...

## #25 Re: Help Me ! » HI please solve this absolute value equation with interval notation .. » 2017-01-27 21:43:25

I don't know bobbym he even don't know what are he doing, like me and the remain of students....

thickhead I don't know what do you mean be (Lim x->0 k^2-3k-3 is incorrect..)

do you mean my solution is wrong?