Mathematics: Post your doubts here!

[Silent Hunter]

http://papers.xtremepapers.com/CIE/...AS Level/Mathematics (9709)/9709_s03_qp_3.pdf

how to do these type of questions? e.g the question7 (iii) ..... theres some kind of infinity thing i guess

any rules regarding these questions?

Rutzaba
applepie1996
Esme
biba

or anyone ?

 

[applepie1996]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s03_qp_3.pdf

how to do these type of questions? e.g the question7 (iii) ..... theres some kind of infinity thing i guess

any rules regarding these questions?

Rutzaba
applepie1996
Esme
biba

or anyone ?

yeap
okay not exactly
just put in a very large t value like 1000 or something
and you get what x converges to

 

[PhyZac]

yeap
okay not exactly
just put in a very large t value like 1000 or something
and you get what x converges to

I was about to say same thing.
Use calculator...put huge number (not very very) and you can find easily.!

 

[PhyZac]

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_s12_qp_33.pdf

Please, anyone question 5 (i)

No need for showing every step, but merely telling what to do is enough.

 

[applepie1996]

I was about to say same thing.
Use calculator...put huge number (not very very) and you can find easily.!

LOL xD
that is the only way i know

 

[Anika Raisa]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s12_qp_33.pdf

Please, anyone question 5 (i)

No need for showing every step, but merely telling what to do is enough.

NOT DONE BY ME! FOUND ON A WEBSITE!

Answers to all questions up in the zip file above in post #9196

 

[nigga7]

in a geomatric progressionthe second term is 9 less than the first term.the sum of the second and thirdterm os 30,given that all termsi the progression are positive,find the first term..... NEED HELP HERE GUYS

 

[Esme]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s03_qp_3.pdf

how to do these type of questions? e.g the question7 (iii) ..... theres some kind of infinity thing i guess

any rules regarding these questions?

Rutzaba
applepie1996
Esme
biba

or anyone ?

That's what I do too.

yeap
okay not exactly
just put in a very large t value like 1000 or something
and you get what x converges to

 

[Esme]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s12_qp_33.pdf

Please, anyone question 5 (i)

No need for showing every step, but merely telling what to do is enough.

I hope you got this from Anika Raisa's post

 

[Esme]

hey ppl..when a plane passes through a point lets say for example point A..what will be the relation between the plane and the point it has passed ?

This means the point is lying in the plane, so when you substitute the point in the equation of the plane, it should be satisfied.
That's the only relation I could think of right now

 

[iKhaled]

can someone please do question 3 and question 10 of this paper..i am really confused

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_s11_qp_31.pdf

 

[surinr]

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

Please help with entire Q10
thank you

 

[PhyZac]

Anika Raisa
Oh, thank you thank you thank you!!!!!!!!!!!!!

Jazaki Allah khairan!!

May Allah s.w.t have mercy on you and your family and the one who actually did that Aameeeen

THanks ALOT...Jazakum Allahu khairan!!!!!!!

 

[Esme]

can someone please do question 3 and question 10 of this paper..i am really confused

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s11_qp_31.pdf

For Q10 did you split the differential equation and use partial fractions ?

 

[Anika Raisa]

Anika Raisa
Oh, thank you thank you thank you!!!!!!!!!!!!!

Jazaki Allah khairan!!

May Allah s.w.t have mercy on you and your family and the one who actually did that Aameeeen

THanks ALOT...Jazakum Allahu khairan!!!!!!!

no problem! u r welcome!

wa JazakAllah Khair!

 

[iKhaled]

PhyZac

isn't the least value of |z| should be 3√2 why the markscheme is saying 3√2/2 :S:S

its question 8(ii)

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_s11_qp_31.pdf

 

[iKhaled]

For Q10 did you split the differential equation and use partial fractions ?

yes and i got A= 1/1800 and B = 1/1800 y does the mark scheme says A= 2 and B= 2 :S

 

[PhyZac]

PhyZac

isn't the least value of |z| should be 3√2 why the markscheme is saying 3√2/2 :S:S

its question 8(ii)

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s11_qp_31.pdf

Yup I got answer like yours, i will look more into it.

 

[iKhaled]

Yup I got answer like yours, i will look more into it.

thank u pls do tell me the answer when u get it

 

[Esme]

yes and i got A= 1/1800 and B = 1/1800 y does the mark scheme says A= 2 and B= 2 :S

Ignore the ms :/
Yeah that's what I got too. Now integrate it just like you would normally do.
After integration you get
1/1800(ln|N|) - 1/1800(ln|1800-N| = t/3600 + c
Use t=0, N=300 to find c
c=1/1800(ln|1/5|)

And then solve it to find N in terms of t