Mathematics: Post your doubts here!

[Edison Weeho]

If possible post the link, my iPhone is working damn slow.

http://papers.xtremepapers.com/CIE/...AS Level/Mathematics (9709)/9709_w07_qp_3.pdf

 

[Thought blocker]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w07_qp_3.pdf

Well whats big deal here?
Just replace the sin function with -1 that's all.
"Just replace sin 2t by -1"
Thats all in it.

Got it? Or want a work solution of whole 7th question?

 

[Harsh Poddar]

Can someone help me with the Q7 - http://gopapers.net/alevel.html?_9709_s13_qm_12
Thanks

 

[Thought blocker]

Can someone help me with the Q7 - http://gopapers.net/alevel.html?_9709_s13_qm_12
Thanks

Hey this is the only way to do it, like its just inverse of a method we use to do "midpoint thingy"
Tell me if you dont get it.

 

[Thought blocker]

Could someone please solve his for me:
The number of defect lamps found in every house has a Poisson distribution with mean 3.
a) Find the probability that for 7 particular houses, no defect lamps were found in 2 houses.
b) Find the probability that for 120 particular houses, at least 2 defect lamps were found in less than 70 houses

I haven't took Statistics. Sorry.

 

[Harsh Poddar]

Hey this is the only way to do it, like its just inverse of a method we use to do "midpoint thingy"
Tell me if you dont get it.

Thanks bro

 

[Thought blocker]

robinhoodmustafa M in hurry. gtg.
Here:¬

 

[jungly krinsky]

Thanks a lot.

 

[Farheen1201]

Salam,
I need help with mechanics 1....Can somebody help?...
Chapter 4...
Question 7
A particle P of mass 4m kg is at rest on a horizontal table. A force of magnitude 50m Newtons acting upwards at an acute angle α to the horizontal, is applied to the particle. Given that tan α = (3/4) and that there is a resistance to the motion of magnitude 20m Newtons, find the acceleration with which P moves. Find in terms of m the magnitude of the normal contact force of the table on P.
Please help asap....

 

[Snowysangel]

In s1, why is variance = [(sum of x2 + sum of y2)/ (x+y)] - (mean)2

 

[Miral Lovato]

Hey ! Amm is math compolsury in cie ? Lol i know it is but still if i can do some other subjects instead of this math mental math will really make me mental please tell me what can i do

 

[The Godfather]

In s1, why is variance = [(sum of x2 + sum of y2)/ (x+y)] - (mean)2

Sorry no S1 in my syllabus.

 

[The Godfather]

Hey ! Amm is math compolsury in cie ? Lol i know it is but still if i can do some other subjects instead of this math mental math will really make me mental please tell me what can i do

Why are you so afraid of mathematics?
It keeps our mind active and fresh.
Nothing is hard until you put your heart and all your grace in your work.
I would suggest you to take mathematics. No other suggestion from my side.

 

[loveyuan]

http://www.google.com.my/url?sa=t&r...8lfqolpMgSXZ9Ww4YfymVCg&bvm=bv.73231344,d.dGc

question number (3 a i )
anyone ? answer is 0.244

 

[Thought blocker]

http://www.google.com.my/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CBsQFjAA&url=http://www.utm.ac.mu/resource/documents/formatted%20probability%20and%20statistics%20-%20bis.pdf&ei=ru3tU92pCdfs8AXD1YGIDg&usg=AFQjCNG7F7V8lfqolpMgSXZ9Ww4YfymVCg&bvm=bv.73231344,d.dGc

question number (3 a i )
anyone ? answer is 0.244

DK Statistics.

 

[skittle_geek]

How do you solve Qn.7b..Please help

 

[Thought blocker]

How do you solve Qn.7b..Please help

Hope it helps.

 

[chishtyguy]

skittle_geek
My version of the solution

 

[skittle_geek]

Hope it helps.

Thanks so much ..it helped a lot

 

[Thought blocker]

Someone plz help me in this stupid confusing domain range chapter :/
If someone can help me understand ~Domain Range~ chapter and ~Vector Paper 3~ only, I would be really Thankful to him/her :/


Help needed!!!
I know that range of a function is the domain of the inverse function and vice versa but how to find domain in this question
part (iv) only
and PLZZ answer with deep knowledge ( I mean with more theory and working which is clearly understandable to solve rest of the questions):
Thanks and May Allah bless us all with knowledge and A/A*s in A Levels Ameen
View attachment 46644


kitkat <3 :P Angelina_25 shazmina fantastic girl Anyone :SSS
Plejj :'/

Here Rookaya did this. http://www.twiddla.com/1729925 Aly Emran