Mathematics: Post your doubts here!

[husnain99]

Can someone please post most difficult questions from Igcse maths ? ( p2 and p4 )

 

[mistique_bee]

Can someone please post most difficult questions from Igcse maths ? ( p2 and p4 )

do this xD

 

[Anny Mazhar]

AsSalamoAlaikum Wr Wb...

Stuck somewhere in Maths?? Post your queries here! Members around will help you InshaAllah.

NOTE: If you have any doubt in the pastpper questions, then kindly post the link to the paper!

May Allah give us all success in this world as well as the HereAfter...Aameen!!

SEQUENCES-Points to remember:
Many people find it hard, but to be honest it's just more of logic..that's all!

Sequences!

Using log for indices.

How to solve these two?

 

[AleezaQureshi]

Can someone post sequence compiled past papers from 2003-2015
THANKS IN ADVANCE

 

[kostaus]

Hi,

Can someone explain me if a student is able to choose between paper combination (ie 11-31-51 or 12-32-52 or 13-33-53)?
I cannot understand why there are 3 combination of papers.
Please explain...

Thanks

 

[qwertypoiu]

How to solve these two?
View attachment 60439 View attachment 60440

So they give us two conditions for the line: it passes through (2,3) and they say the line is perpendicular to y = 2x + 5. This means the gradient of our line has to be -1/2.

So

y - 3 = -0.5(x - 2)

y - 3 = -0.5x + 1

0.5x + y = 4

x + 2y = 8

So a = 1, b = 2, d = 8 (or any set of values in this ratio will be correct)

 

[qwertypoiu]

How to solve these two?
View attachment 60439 View attachment 60440

If sin x = 0.5,

cos x = sqrt( 1 - 0.5^2) = -0.866

The reason the answer is negative is because the angle is obtuse

 

[Sam19KY]

What was the last question in paper 4 (june 2016 . 0580 maths)? Was it asking about the equation of a perpendicular bisector of the line AB or was the line just perpendicular to AB but not bisecting it ?

 

[Hania Rehman]

Does anyone have an idea that how will the grade thresholds for maths may\june 2016 be? like will they be higher or lower compared to may\june 2015?

 

[The Sarcastic Retard]

Does anyone have an idea that how will the grade thresholds for maths may\june 2016 be? like will they be higher or lower compared to may\june 2015?

it will be around..

 

[Egyptian Student]

I am ready to teach Chemistry, Biology, Math, Economics and Accounting IGCSE
also AS math and
complete Al Biology for a small payment online (using skype+whiteboard)
I have my statement of result to show u my grades
7 astars in IGCSE
2 A in AS
and the rest will appear in august
Pray for me!

 

[delta.charlie321]

Anybody know how to do part b) ii) of this question??? Paper reference 0580/42/F/M/16

http://imgur.com/5eo3and

 

[XPFMember]

Anybody know how to do part b) ii) of this question??? Paper reference 0580/42/F/M/16

http://imgur.com/5eo3and

Use the relevant formulas now, find the value of x. And then area of triangle, and then the Volume.

 

[kostaus]

Hi,

Does calculator TI nspire CX supports Units Conversion?
I think it does not.
If anyone knows something about it, please inform me.

Thanks

 

[delta.charlie321]

View attachment 60839

Use the relevant formulas now, find the value of x. And then area of triangle, and then the Volume.

Thank you so much, I found the answer. How could I have forgotten the circle theorems

 

[XPFMember]

Thank you so much, I found the answer. How could I have forgotten the circle theorems

I didn't solve it in full, because I couldn't recall the formulas either. Its been long. lol

 

[delta.charlie321]

Can anyone explain in part b)i), how do you find the width of the water surface?

 

[kostaus]

Hint: Use similar triangles (right angled triangles).

 

[delta.charlie321]

Hint: Use similar triangles (right angled triangles).

Could you elaborate more?

 

[kostaus]