Mathematics Corner :)

[al.Ghurabaa']

Just wanted to ask, does anyone have any C2 past papers? and S1? I've got the solomon ones, but I need the past papers.

Jazakumullahukhairan!

 

[~Raynn~]

^^ Is this OCR? The website has some of the most recent papers (The codes for C2 and S1 are 4722 and 4732 respectively...)

 

[The Ruler]

If you want Edexcel ones, just check the studentroom. Simply because I'm too lazy to scan all the ones I have from last year and post them up.

 

[Yanal]

I don't know how to get the Surface area and volume of the followingyrimads,prisms,triangle,circle,sphere,square and rectangle. Any help will be appreciated jazakAllah.

 

[GreyKode]

^seriously or are you jokin.

 

[Yanal]

Seriously.

 

[GreyKode]

ok

Areas
triangle : Area 1/2 * base * height
pyramid/prism : Sum of surface areas
circle : pi*r^2
sphere : 4*pi*r^2
rectangle : l*b
square : l^2

 

[Yanal]

Whats * and ^? And is this volume or SA?

 

[GreyKode]

Those are Areas, * => multiply, ^ => raised to power

 

[Yanal]

I need surface area brother,jazakAllah for trying.

 

[GreyKode]

surface area = area , what's the difference bro?

 

[Yanal]

Ok jazakAllah and volume?

 

[Yanal]

Ok jazakAllah and volume? And whats power up? Divide?

 

[The Ruler]

Ok jazakAllah and volume? And whats power up? Divide?

Volume for? I didn't look at page 21. v_v

2^3 = 2 to the power of 3 = 2 x 2 x 2 = 8

2^n = 2 multiplied by itself n times.

 

[The Ruler]

I'm having difficulties understanding the domain and range with any function of x. Explain?

 

[GreyKode]

Domain : is the set of values of x over which the function is "defined".

example : A function can be "defined" only for positive values on the real line like the ln(x) function, so this function is by definition undefined for -ve values. Note : we define the function as we please. Therefore in this case the domain is X>0.

Range : All possible values of y that result from substituting all values of x from within the domain of the function.
example : the sin(x) function can take only values between -1 and 1.

 

[crayon]

Let me just take this opportunity to state how much I loathe math. And how I loathe calculus even more.:smile:

I'm having trouble with integration and implicit differentiation.. Anyone got any online sources that can explain them both really well?

 

[transition?]

Let me just take this opportunity to state how much I loathe math. And how I loathe calculus even more.:smile:

I'm having trouble with integration and implicit differentiation.. Anyone got any online sources that can explain them both really well?

Paul's Online Calculus Notes

http://tutorial.math.lamar.edu/Classes/CalcI/CalcI.aspx

=) He goes all the way up to Calculus 3 and Linear Algebra

 

[Al-Hanbali]

Implicit Diff. = :exhausted !!

Try this link sis ---> Implicit Differentiation & this page has some stuff on Integration ---> http://www.mathsrevision.net/alevel/pure/

 

[crayon]

^Jazakum Allah khair sis transition? and brother Saifur-Rahman, those links look great.. InshaAllah I'll read them and if I still don't get it, ask some more questions on here.

Thing with implicit differentiation is, I think I get it, but then I solve a bunch of questions, and every single one is wrong...:><: