Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫  π  -¹ ² ³ °

You are not logged in.

## #1 2016-09-22 14:26:24

Zeeshan 01
Member
Registered: 2016-07-22
Posts: 648

### Integral

Find &Y and dy
Y^2 =x^2-1 when x changes from 3 to 3.02 question ends... plese solve it
And
What is differentIate between &y and dy

Last edited by Zeeshan 01 (2016-09-22 19:00:55)

MZk

Offline

## #2 2016-09-22 14:46:50

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### Re: Integral

What does &Y mean?

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.

Offline

## #3 2016-09-22 15:31:42

Zeeshan 01
Member
Registered: 2016-07-22
Posts: 648

delta y

MZk

Offline

## #4 2016-09-22 19:15:39

Member
Registered: 2016-04-16
Posts: 1,086

### Re: Integral

{1}Vasudhaiva Kutumakam.{The whole Universe is a family.}
(2)Yatra naaryasthu poojyanthe Ramanthe tatra Devataha
{Gods rejoice at those places where ladies are respected.}

Offline

## #5 2016-09-22 21:13:25

Zeeshan 01
Member
Registered: 2016-07-22
Posts: 648

### Re: Integral

Yup!!

Can u explain it I have also key book also but I want explaination
Difference betw dy and delta y

MZk

Offline

## #6 2016-09-22 21:15:40

Zeeshan 01
Member
Registered: 2016-07-22
Posts: 648

### Re: Integral

Why you put x=3......

MZk

Offline

## #7 2016-09-22 21:52:58

Member
Registered: 2016-04-16
Posts: 1,086

### Re: Integral

I won't answer any more questions on this.

{1}Vasudhaiva Kutumakam.{The whole Universe is a family.}
(2)Yatra naaryasthu poojyanthe Ramanthe tatra Devataha
{Gods rejoice at those places where ladies are respected.}

Offline

## #8 2016-09-22 22:02:47

Zeeshan 01
Member
Registered: 2016-07-22
Posts: 648

Why ?

MZk

Offline

## #9 2016-09-22 22:44:44

zetafunc
Moderator
Registered: 2014-05-21
Posts: 2,179
Website

### Re: Integral

Zeeshan 01 wrote:

Why you put x=3......

Zeeshan 01 wrote:

Find &Y and dy
Y^2 =x^2-1 when x changes from 3 to 3.02 question ends... plese solve it
And
What is differentIate between &y and dy

Offline

## #10 2016-09-22 23:39:50

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### Re: Integral

Hi;

thickhead: If you do not want to answer a post that is your choice. But when you do try to remember that you are talking to a human being and a member of this forum as you are. Posting smilies back at people to taunt or ridicule ( I removed it ) can hurt someone's feelings. Please do not do that anymore.

Zeeshan 01 wrote:

Difference betw dy and delta y

Delta y,

is the change in y over any interval. dy is the change in y over an infinitesimal interval.

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.

Offline

## #11 2016-09-23 00:25:47

Member
Registered: 2016-04-16
Posts: 1,086

### Re: Integral

Hi Zeeshan,
I am sorry if you have been offended. I had every reason to believe  you were pulling my leg.You only had given me the value of x=3 ,not chosen by me.
In addition taking dx=0.02 does not confirm to its being infinitesimal. So that may not be what is expected.

Last edited by thickhead (2016-09-23 00:33:28)

{1}Vasudhaiva Kutumakam.{The whole Universe is a family.}
(2)Yatra naaryasthu poojyanthe Ramanthe tatra Devataha
{Gods rejoice at those places where ladies are respected.}

Offline

## #12 2016-09-24 04:05:33

Zeeshan 01
Member
Registered: 2016-07-22
Posts: 648

### Re: Integral

Why delta y approximately equal to dy ant prove

MZk

Offline