MX 2 (3 Viewers)

[barbernator]

how is the integration of sex^2 (x/2) = 2 tan (x/2)

where does the two at front come from?? :S

function of a function. let u=x/2

 

[funnytomato]

the <a href="http://www.codecogs.com/eqnedit.php?latex=\delta" target="_blank"><img src="http://latex.codecogs.com/gif.latex?\delta" title="\delta" /></a> is just delta which means "change in" in greek. I thought it was the "correct" letter to be used and people just used d for ease? or am i wrong?

this is the partial derivative symbol <a href="http://www.codecogs.com/eqnedit.php?latex=\partial" target="_blank"><img src="http://latex.codecogs.com/gif.latex?\partial" title="\partial" /></a><a href="http://www.codecogs.com/eqnedit.php?latex=\partial" target="_blank"><img src="http://latex.codecogs.com/gif.latex?\partial" title="\partial" /></a>

i think OP thought your method was 'complicated' , probably due to this?

 

[barbernator]

i think OP thought your method was 'complicated' , probably due to this?

just shows my eloquence and flair

 

[seanieg89]

The symbol should not be used here. The 'd' is standard and is connected to things like the variation of a functional.

It is more common to write to denote the difference quotient of a function though, and in this case we have:

.

 

[barbernator]

The symbol should not be used here. The 'd' is standard and is connected to things like the variation of a functional.

ahhh damn seanieg coming in with the hammer

 

[seanieg89]

ahhh damn seanieg coming in with the hammer

sorry .

 

[umm what]

HOW MANY People DOING 4 UNIT THIS YEAR?

 

[barbernator]

sorry .

so you give an example of when u use delta instead?

 

[barbernator]

HOW MANY People DOING 4 UNIT THIS YEAR?

about 3500 if numbers are consistent with last year

 

[nightweaver066]

The symbol should not be used here. The 'd' is standard and is connected to things like the variation of a functional.

It is more common to write to denote the difference quotient of a function though, and in this case we have:

.

I've always thought lower case delta was used for smaller changes and upper case delta for larger changes lol.

 

[barbernator]

I've always thought lower case delta was used for smaller changes and upper case delta for larger changes lol.

First Class Honours (Pure Mathematics) at USYD, prepare to be destroyed with mathematical knowledge..

 

[nightweaver066]

First Class Honours (Pure Mathematics) at USYD, prepare to be destroyed with mathematical knowledge..

LOL. Can't wait.

 

[umm what]

Integrate (x^2 - 5x + 1 / x-2 ).dx

 

[nightweaver066]

Integrate (x^2 - 5x + 2 / x-2 ).dx

Use polynomial long division.

Or you could do this..

 

[SpiralFlex]

I love how differentiating tan x goes for 3 pages!

 

[nightweaver066]

I love how differentiating tan x goes for 3 pages!

Serious stuff.

 

[barbernator]

split into partial fractions and integrate. (x-3)-4/(x-2)

 

[umm what]

thats x-3 - 5 / x-2

Use polynomial long division.

Or you could do this..

 

[barbernator]

thats x-3 - 5 / x-2

his working is correct

 

[umm what]

mine?

his working is correct