Mathematics: Post your doubts here!

[Alis alis]

please help me solve this

 

[irtaza615]

Can anybody pleases help me in part ii

 

[Varun_bzl]

please help me solve thisView attachment 65087

 

[Thought blocker]

Can anybody pleases help me in part ii

View attachment 65093

Let f(x) = kx³ + 5x² + 10x + 4
According to factor theorem, f(-1 + √3 i) = 0

Thus,
k(-1 + √3 i)³ + 5(-1 + √3 i)² + 10(-1 + √3 i) + 4 = 0

Now solve for k,
k = 2

So, f(x) = 2x³ + 5x² + 10x + 4
Also, f(x) = {x - (-1 + √3 i)}{x - (-1 - √3 i)}{Ax + B}

f(x) = {x² + 2x + 4}{Ax + B} = Ax³ + (B + 2A)x² + (2B + 4A)x + 4B

Compare coefficient of x³: A = 2
Compare constant: B = 1

f(x) = (x² + 2x + 4)(2x + 1)
Thus, third root is -1/2.

 

[Thought blocker]

Hope it helps.View attachment 65094

Your quadratic factor is incorrect. Should have +2x instead of - 2x there

 

[Varun_bzl]

Your quadratic factor is incorrect. Should have +2x instead of - 2x there

Sorry, my mistake. Thanks

 

[maniali123321]

Re: Maths help available here!!! Stuck somewhere?? Ask here!

Assalamoalaikum!!

Sure..anytime!

sure

 

[A*(a*)]

Is there any whatsapp group for this group and if yes can someone kindly add me over there
Should I tell my whatsapp number

 

[Thought blocker]

Is there any whatsapp group for this group and if yes can someone kindly add me over there
Should I tell my whatsapp number

All Whatsapp groups are full but you can join our new Telegram group for A level Mathematics.

 

[A*(a*)]

Can you please add me in whatsapp group because it suits me more, please remove someone who remains unactive
My whatsapp number is 03312554880
Pleasee 🙏🙏🙏

 

[FRIENDSfan123]

Does anybody have a copy of AS and A Level Pure Mathematics 1 Coursebook by Sue Pemberton free pdf ebook?

 

[Thought blocker]

Can you please add me in whatsapp group because it suits me more, please remove someone who remains unactive
My whatsapp number is 03312554880
Pleasee 🙏🙏🙏

Send me a message on +919426116018

 

[georgeokore545]

God Bless!

 

[krishnapatelzz]

This Facebook math group is really good, you can get an answer to your questions in just one hour. It really helped me a lot. https://www.facebook.com/groups/302892556809834/

 

[kalmitus]

Anyone has the Math A2 level book P2-P3 by Nelson Thorne pdf? pls

 

[black widow]

Hello everyone. It would be a great help if you could please complete this very simple simple questionnaire with regards to COVID-19.

Health Seeking Behavior Of Pakistani Population Before And During COVID-19 Pandemic پاکستانی عوام کا کروناوائرس کی وبا سے پہلے اور مابعد حصول صحت سے متعلق رویہ

(Please read and answer the questions carefully. Thank You for your cooperation.) براہ مہربانی سوالات کو دھیان سے پڑھیں اور جواب دیں۔ ہم آپ کے تعاون پر شکرگزار ہیں۔

docs.google.com

Its completely anonymous so please do mind checking it out.
Stay home. Stay safe.

Thank you!

 

[Silver mist]

How tp dp part i? why are ee adding 4C2?

 

[Silver mist]

How to find variance

 

[Afia Niki]

Assalamoalaikum Wr Wb!

Post your doubts here. Make sure you give the link to the question paper when posting your doubts.


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

And oh yeah, let me put up some links for A level Maths Notes here.

Check this out! - Nice website, with video tutorials for everything! MUST CHECK

My P1 Notes! - Only few chapters available at the moment!

Maths Notes by destined007

Some Notes for P1 and P3 - shared by hamidali391

A LEVEL MATHS TOPIC WISE NOTES

MATHS A LEVEL LECTURES

compiled pastpapers p3 and p4 - by haseebriaz

Permutations and Combinations (my explanation)- P6

Permutations and Combinations - P6

Vectors - P3

Complex No. max/min IzI and arg(z) - P3

Sketcing Argand Diagrams - P3 (click to download..shared by ffaadyy)

Range of a function. - P1

https://papers.gceguide.com/A%20Levels/Mathematics%20(9709)/2018/9709_w18_qp_32.pdf

Can you please help with the very last part (iii) of question 10? And if you can please help with question 5 too.

 

[jooooon]

Animation of Point of Inflexion:

Graph of the curve given in Q11:

hello can you please reshare the image , because i really need it