Mathematics: Post your doubts here!

[aliya_zad]

http://www.xtremepapers.com/CIE/International%20A%20And%20AS%20Level/9709%20-%20Mathematics/9709_s04_qp_3.pdf
Q6..
ive reached till this point..dunno how to continue..
ln y + (y^3/3) = x +(1/3)

Please help!!

 

[smzimran]

https://docs.google.com/viewer?a=v&q=cache:IaRQJhRmAkwJ:www.xtremepapers.com/CIE/International%20A%20And%20AS%20Level/9709%20-%20Mathematics/9709_s11_qp_33.pdf june 2011 paper 33 9709&hl=en&gl=pk&pid=bl&srcid=ADGEESjYz73WA17qH7QAbaflbMEE_JFcN4JyTaUj6TO5ViQDUWn2LZD-aqAovg-bma5R5mQNrn2hclR6h4yfIz6jRIdKI7ObAhT6V7KAzkD0R3HccWZm71mN3G8dAA-yQspXn2ufarCv&sig=AHIEtbR25jP8EKBUeSdXW_ilg8B8yTawGw
Q7iii

https://docs.google.com/viewer?a=v&q=cache:TmYSFWZpho0J:www.xtremepapers.com/CIE/index.php?dir=International%20A%20And%20AS%20Level/9709%20-%20Mathematics/&file=9709_s11_ms_33.pdf june 2011 paper 33 9709&hl=en&gl=pk&pid=bl&srcid=ADGEESikYPmcahCHYpqpmGx_zgPTgXf_SJXKtNhcu9Q0nGP0gNBAP50IcXUQ3kEUv7RmzrkRabDkIfZcW2qUTqgxflAkqBDQlYGgsWerPrhESNfCyBnS930jvtREmYId4Li7GH91m51f&sig=AHIEtbT8Gd8fvDJMkYEoLWJzPLYRNl-4Wg

Its simple:
Break the power 6 into 3 times square and solve for both roots one by one
Like this:
(− root(3) + i)^2 * (− root(3) + i)^2 * (− root(3) + i)^2

Btw, are you a teacher ?

 

[miss irfan]

Its simple:
Break the power 6 into 3 times square and solve for both roots one by one
Like this:
(− root(3) + i)^2 * (− root(3) + i)^2 * (− root(3) + i)^2

Btw, are you a teacher ?

thanks a bunch
and no i am NOT!

 

[miss irfan]

View attachment 9581
w = -1 + i
w^2 = 0 - 2i
To find centre of circle, use midpoint formula:
= [ {(-1 + 0) / 2} , {(i - 2i) / 2} ]
= [-0.5 , -0.5i ]

To find radius find half the length of w to w^2
= 0.5 * | {-1 - (0)} , {i - (-2i)} |
= 0.5 * | -1 , 3i |
Find length by taking modulus
radius = 0.5 * root [ (-1)^2 + (3)^2 ]
= 0.5 * root [1 + 9]
= 0.5 * root (10)

Now write the equation in the form |z − (a + bi)| = k
where (a + bi) is the coordinate of the centre of the circle
and k is the radius

how did you find the radius?

 

[smzimran]

http://www.xtremepapers.com/CIE/International A And AS Level/9709 - Mathematics/9709_s04_qp_3.pdf
Q6..
ive reached till this point..dunno how to continue..
ln y + (y^3/3) = x +(1/3)

Please help!!

 

[miss irfan]

how did you find the radius?

oh i got it! thanks

 

[smzimran]

how did you find the radius?

w to w^2 is the diameter
find the length of the diameter and divide it by 2
Thats what I did, check!

 

[hm12]

prove the identity cos 4theeta -4cos 2theeta+3=8sin^4theeta

 

[aliya_zad]

View attachment 9591

Thank you So Much!!!!!!!!!!!!!!

If possible can u help me with my May june 2008 doubts..on Argand diagrams
http://www.xtremepapers.com/CIE/International A And AS Level/9709 - Mathematics/9709_s08_qp_3.pdfPlease help me with the 8th one..part 1 and the 5th one part 2!!!!!
Please!!

 

[miss irfan]

https://docs.google.com/viewer?a=v&...h5Lf5D&sig=AHIEtbTfFEbI3bmoyd0Wnx3O3bppOVsZ_w

Q10

 

[reina81]

in ON11 P31, Q1, we found x using 'ln'. What i want to know is if there is a constant on one side do i take it as ln3 or lne^3, In this question they took ln3 while in other questions for eg, differential equations we take it as lne^3. Please Help.


http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_w11_qp_31.pdf
http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_w11_ms_31.pdf

 

[miss irfan]

https://docs.google.com/viewer?a=v&q=cachel5TBi4TmzcJ:www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w11_qp_33.pdf november 2011 paper 33 9709&hl=en&gl=pk&pid=bl&srcid=ADGEESjynU7l4xl4mks2Y9oAnb1ghOQR75yUtAXuiAgJKP_3ljz5gDqaCPFYXCpxIS64HCC4oTVS4IwZIOBFrPlov_GWo38j47c-BwVoNuC1LpcY83kSTKful1Zt-ubLe1vbidh5Lf5D&sig=AHIEtbTfFEbI3bmoyd0Wnx3O3bppOVsZ_w

Q10

https://docs.google.com/viewer?a=v&...CXzCWJ&sig=AHIEtbQW9r4rGSvIB6Smh2zVdNIaS7iw2Q

 

[smzimran]

Thank you So Much!!!!!!!!!!!!!!

If possible can u help me with my May june 2008 doubts..on Argand diagrams
http://www.xtremepapers.com/CIE/International A And AS Level/9709 - Mathematics/9709_s08_qp_3.pdfPlease help me with the 8th one..part 1 and the 5th one part 2!!!!!
Please!!

Q8(i) I have done this before in this thread, search

Q5(ii)
Multiply by conjugate of z + 2 - i
The conjugate is z + 2 + i


Btw, attach the links to the m.s as well!

 

[smzimran]

in ON11 P31, Q1, we found x using 'ln'. What i want to know is if there is a constant on one side do i take it as ln3 or lne^3, In this question they took ln3 while in other questions for eg, differential equations we take it as lne^3. Please Help.

Post the links!

 

[smzimran]

https://docs.google.com/viewer?a=v&q=cachel5TBi4TmzcJ:www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w11_qp_33.pdf november 2011 paper 33 9709&hl=en&gl=pk&pid=bl&srcid=ADGEESjynU7l4xl4mks2Y9oAnb1ghOQR75yUtAXuiAgJKP_3ljz5gDqaCPFYXCpxIS64HCC4oTVS4IwZIOBFrPlov_GWo38j47c-BwVoNuC1LpcY83kSTKful1Zt-ubLe1vbidh5Lf5D&sig=AHIEtbTfFEbI3bmoyd0Wnx3O3bppOVsZ_w

Q10

This question, how can i solve it here means writing the powers down and all not too much symbols or space!

 

[reina81]

Post the links!

oh so sorry. here it is
http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_w11_qp_31.pdf
http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_w11_ms_31.pdf

 

[miss irfan]

This question, how can i solve it here means writing the powers down and all not too much symbols or space!

is it possible for you to post the solution? or if you could tell the steps?

 

[smzimran]

is it possible for you to post the solution? or if you could tell the steps?

Wait i'll tell you in afternoon after i solve this paper myself!

 

[hm12]

http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_w09_qp_31.pdf
please solve question 5 part (i)

 

[farrukh]

Please help me in the third part. How can we solve it without using the formula..Thanks