Mathematics: Post your doubts here!

[ahmadumar]

for

Can't do question 3 (c) i and ii ~ M/J - 43 - 2013!!View attachment 42101

(ii) part u have to look for the ans in the unshaded region. that is the one required. how do we shade? draw a line according to the equation if its only > or < sign draw a dotted line if = or greater/lesser than equals to, than draw a full line
so lesser means region under that line is the region required. so all thing above that line shade it because its unwanted. now do same for all equations :3
and then look for different points in the unshaded region and find the biggest point :3

 

[DeadlYxDemon]

for

(ii) part u have to look for the ans in the unshaded region. that is the one required. how do we shade? draw a line according to the equation if its only > or < sign draw a dotted line if = or greater/lesser than equals to, than draw a full line
so lesser means region under that line is the region required. so all thing above that line shade it because its unwanted. now do same for all equations :3
and then look for different points in the unshaded region and find the biggest point :3

The only line i couldn't draw is "x+2y=40" :/

 

[ahmadumar]

Can someone please help me with this? thank you so much May 2011 paper 42 question 4 d http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s11_qp_42.pdf

 

[ahmadumar]

do

The only line i couldn't draw is "x+2y=40" :/

the same thing. once put y=0 and then x=0 and plot the 2 points and join them a solid line will be formed

 

[Evangeline]

Thanks Then should I take the point that intersects the x and y axis to find the gradient?

 

[Mr.Physics]

The only line i couldn't draw is "x+2y=40" :/

THIS IS EASY !!!!!
WAIT A MINUTE I' LL POST U SOLUTION !!!!!

 

[Evangeline]

question 1 please , thanks.
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w11_qp_43.pdf

 

[ahmadumar]

Thanks Then should I take the point that intersects the x and y axis to find the gradient?

yes u can take any 2 points on this line of tangent

 

[Magnanimous!!!]

Re: IGCSE Maths Tips nov.2010!Confused!have questions?Post h


Hello!!

well as i always say...sequences are very easy...u dont need these complicated formulas...atleast for IGCSE's so here try to look it through...link the last row with the ones in the beginning...

i tried and finally i realized there's a link with the first row...the one with the heading Diagram!!

if u notice....divide each with the no. in the first row...

u'll get 4, 6 , 8 , 10

so that means to get
n=1 => 4 x 1
n-2 => 6 x 2
n=3 => 8 x 3
so for n=n how is it going to be??
for the sequence 4, 6, 8, 10...the nth term is 2n + 2...this is the simple AP

so substituting in the pattern above
n=n => (2n + 2) x n
is the expression for the nth term...hope u got that clear!!

if u still wud want to learn the formulas it's ur wish ....but be sure nt to mess uo the formula

Can u tell me the formula?

 

[dubi2pro]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w13_qp_41.pdf
same paper q 9 ci and cii

 

[Hello090078601]

Hi, guys I need help in the last question, last part of May/June 2013, paper 42.

Question 11, d(iii). Page, 19.

The angle is given as 18.43.

NEED HELP ASAP!


"http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s13_qp_42.pdf

 

[iamservantofALLAH]

Will someone be kind enough to upload a picture solution of Question 2(a) of paper 0580/43/M/J/13?

 

[The Chill Master]

Q8 cii

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w12_qp_41.pdf

 

[Hello090078601]

Guys, need help in:

7b (iv)

It's a vector question.

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s12_qp_42.pdf

 

[Faheen]

plz help

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s13_qp_42.pdf
q11c)
q11dii)

 

[Shadow_hunter]

LALALALALALALALALALA I HATE MY LIFE! WE ALL HATE OUR LIFE!! LALALALALALALALALALA!

 

[khanboy007]

Question 9(c) Sequences

thanks

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s11_qp_42.pdf

please click on the reply button or quote me while replying

 

[Kshitij_2511]

Question 9(c) Sequences

thanks

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s11_qp_42.pdf

please click on the reply button or quote me while replying

take two values of n, i.e. 1 and 2(or anything) and replace them with the equations separately, i.e.
a(1)3+ b(1)2+ (1) & a(2)3+ b(2)2+(2)
solve these 2 to obtain 2 simultaneous equations and find values of a,b.

 

[DeadlYxDemon]

I am terrible in sequences, so plz let me know the formulas thru which we can find?

 

[My Name]

Mai(M4!)
DeadlYxDemon
ahmadumar
Mr.Physics
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s13_qp_41.pdf
question 1 part b
question 2 part d help me with tangents
question 3 part aiii how to do it! and part b ii
question 6 part c i and d
question 7 part b
question 8 part aii and iii
question 10 part b iii and d