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#26 2017-03-27 22:06:27
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Area by integration
It looks okay, if you want to get a picture in here you must use some image hosting site.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#27 2017-03-27 22:09:44
- iamaditya
- Member
- From: Planet Mars
- Registered: 2016-11-15
- Posts: 821
Re: Area by integration
Yes, done. tinypic uploaded my image. What is the next step?
Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam
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#28 2017-03-27 22:10:40
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Area by integration
Can you see your picture on that site?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#29 2017-03-27 22:14:14
- iamaditya
- Member
- From: Planet Mars
- Registered: 2016-11-15
- Posts: 821
Re: Area by integration
Yes
Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam
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#30 2017-03-27 22:14:50
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Area by integration
Right click on it and choose "Copy Image Location"
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#31 2017-03-27 22:17:11
- iamaditya
- Member
- From: Planet Mars
- Registered: 2016-11-15
- Posts: 821
Re: Area by integration
You mean "Copy Image address"?
Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam
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#32 2017-03-27 22:19:27
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Area by integration
Yes, that will be okay.
Then take and put the address between the "[img]Put it Here[/img]" tags.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#33 2017-03-27 22:20:57
- iamaditya
- Member
- From: Planet Mars
- Registered: 2016-11-15
- Posts: 821
Re: Area by integration
Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam
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#34 2017-03-27 22:21:41
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Area by integration
How does that differ from mine?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#35 2017-03-27 22:23:11
- iamaditya
- Member
- From: Planet Mars
- Registered: 2016-11-15
- Posts: 821
Re: Area by integration
Oh done, thank u very much.
It is not written in the help page in miff.Then how did u cum 2 no it?
can u name me some more image hosting sites. Cant this be uploaded here without any image hosting site?
Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam
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#36 2017-03-27 22:25:44
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Area by integration
It needs an image hosting site, you can not directly upload an image here.
Then how did u cum 2 no it
The EM way of doing things is powerful in all fields not just math.
But you did not answer the question.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#37 2017-03-27 22:30:30
- iamaditya
- Member
- From: Planet Mars
- Registered: 2016-11-15
- Posts: 821
Re: Area by integration
you mean the question that Zeeshan01 asked? Oh he wants to find the area of the 2 curves that cross the X- axis. I see you got a different graph. How did you get that graph?
Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam
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#38 2017-03-27 22:31:53
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Area by integration
You can get it with Mathematica, Wolfram Alpha or Geogebra.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#39 2017-03-27 22:37:35
- iamaditya
- Member
- From: Planet Mars
- Registered: 2016-11-15
- Posts: 821
Re: Area by integration
But, I got the above graph... Anyway, the answer would be finite in my graph and in your graph the answer would be infinite, so you were asking zeeshan for the limits in post #2.
Last edited by iamaditya (2017-03-27 22:38:09)
Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam
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#40 2017-03-27 22:39:39
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Area by integration
That is correct without an interval given the shaded area can not be drawn. The question is either been truncated or it is just plain wrong.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#41 2017-03-27 22:50:05
- iamaditya
- Member
- From: Planet Mars
- Registered: 2016-11-15
- Posts: 821
Re: Area by integration
Yeah maybe .
Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam
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#42 2017-03-27 22:52:22
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Area by integration
Most likely the interval is [-2,2]
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#43 2017-03-27 22:55:57
- iamaditya
- Member
- From: Planet Mars
- Registered: 2016-11-15
- Posts: 821
Re: Area by integration
Yes, you are right. according to my graph it is.
Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam
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#44 2017-03-27 22:58:56
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Area by integration
Or maybe [-2,0]
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#45 2017-03-27 23:01:08
- iamaditya
- Member
- From: Planet Mars
- Registered: 2016-11-15
- Posts: 821
Re: Area by integration
I think it is the sum of areas of [-2,0] and [0,2] according to my graph.
Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam
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#46 2017-03-27 23:05:31
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Area by integration
Judging by the questions that some of today's teachers ask it is impossible to second guess them.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#47 2017-03-27 23:12:08
- iamaditya
- Member
- From: Planet Mars
- Registered: 2016-11-15
- Posts: 821
Re: Area by integration
what do you mean by it is impossible to second guess them?
Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam
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#48 2017-03-28 02:09:19
- Zeeshan 01
- Member
- Registered: 2016-07-22
- Posts: 746
Re: Area by integration
Hehe I am shocked to see much reply but it's all aboit imgr
Malik
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#49 2017-03-28 08:21:12
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Area by integration
This is what I would do:
But you should be able to see that unless I am given an interval for x I can not really plot the figure. It is impossible to graph from - infinity to infinity.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#50 2017-03-28 19:50:53
- Bob
- Administrator
- Registered: 2010-06-20
- Posts: 10,640
Re: Area by integration
Find the area bounded by the curve y=x^3-4x and the x axis
Also we have an earlier post about factorising quadratics. Putting these together, I think the expectation is (1) factorise the quadratic (2) identify the area formed by the curve and the x axis (3) use integration to determine this area.
There are several plots already in this thread showing this curve.
Usually an additional piece of information is given, such as x > 0, which would make the interval [0,2]
But without that, taking two intervals [-2,0] and [0,2] seems reasonable.
What you mustn't do is
as the negative part will exactly cancel the positive part, giving an incorrect answer of zero.
Better to do
Bob
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob 
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