[CIE] All Pure Mathematics (P1, P2 and P3) doubts here !

[melony]

awh no ! seems like everyone's offline, i just had two questions:
ON10 paper 31 question 7 (ii) i do not know how to get ?=-1/6 
June 2004 question 6 - i know it starts of like 1/3 ln (y^3+1)=x+c but i have no idea where the 1/3 comes from (should have listened in class  )

[........]

awh no ! seems like everyone's offline, i just had two questions:
ON10 paper 31 question 7 (ii) i do not know how to get ?=-1/6 
June 2004 question 6 - i know it starts of like 1/3 ln (y^3+1)=x+c but i have no idea where the 1/3 comes from (should have listened in class  )

Um i just did Oct/Nov 2010 so yea heres your solution to 2010 query

[........]

can someone explain how to do questions like -->
question 5 paper 33 june 2010 part ii
and
question 3 paper 33 octover/nov 2010 part ii


and how to do question 10 on may june 2010 paper 33
Thank you very much

Modulas 5 is the radius and (3,4) is the center of the circle and you have to shade all the points on and inside the circle center.October/November 2010 part ii

[leebux101]

awh no ! seems like everyone's offline, i just had two questions:
ON10 paper 31 question 7 (ii) i do not know how to get ?=-1/6 
June 2004 question 6 - i know it starts of like 1/3 ln (y^3+1)=x+c but i have no idea where the 1/3 comes from (should have listened in class  )

for june 2004,
u get y²ln(y³ +1)
so when differentiating the inner content, u get y³ln(y³ +1)/3y²
y² gets cancelled and u get u 1/3 ln(y³ +1)
please reconfirm this cud i am not sure if i am right..
can anyone reconfirm this.. ? pleaseeee!!! =(

[leebux101]

Its A circle with radius=2 units and center u.

i wrote part iii not part ii, do u know part iii then?

[........]

can someone explain how to do questions like -->
question 5 paper 33 june 2010 part ii
and
question 3 paper 33 octover/nov 2010 part ii


and how to do question 10 on may june 2010 paper 33
Thank you very much

question 5 paper 33 june 2010 part ii

[........]

awh no ! seems like everyone's offline, i just had two questions:
ON10 paper 31 question 7 (ii) i do not know how to get ?=-1/6 
June 2004 question 6 - i know it starts of like 1/3 ln (y^3+1)=x+c but i have no idea where the 1/3 comes from (should have listened in class  )

as for the second part

listen when there is a equation like y^2/y^3+1 the only way to integrate this is when you differentiate the denominator the exact value should come in the numerator. In this case the differentiation of y^3+1 is 3y^2 but in the numerator it is y^2 so you take the 3 out by multiplying it by 1/3. so now it comes 1/3(y^2/y^3+1)and then you get 1/3ln(y^3+1)

[melony]

wow thank you guys so much (leebux101 and ........)!!   
i wish you well for the exam 

[TJ-56]

That is because if you substitute t=-2 and t=-1/3 in the position vector of P ; the dot product of AP.AB should be +ve since the angle is acute.. If its -ve the angle is obtuse...Therefore if you use t=-2 you will get it +ve, and t=-1/3 will be -ve meaning obstuse angle which is incorrect..

Oh ok thanx.. that cleared it up,
+rep

[aloha32]

Hi guys
I really need help with complex numbers and argand diagrams!
Can u plz help me with these qs/
 Nov 06 q9 part 4
Nov 09 q7 part4
JUNE 10 V1 Q7 Part 3
THANK U

[SkyPilotage]

Hi guys
I really need help with complex numbers and argand diagrams!
Can u plz help me with these qs/
 Nov 06 q9 part 4
Nov 09 q7 part4
JUNE 10 V1 Q7 Part 3
THANK U

Sadly , i dont have a good scanner to show you the argand diagrams So hopefully someone will upload them for you...
Who has the Alevel Cie Pure mathematics 2 and 3 by Hugh Neil and Douglas Quading???
Page 300 number 6 I) and page 303 number 9I)

[Arthur Bon Zavi]

Sadly , i dont have a good scanner to show you the argand diagrams So hopefully someone will upload them for you...
Who has the Alevel Cie Pure mathematics 2 and 3 by Hugh Neil and Douglas Quading???
Page 300 number 6 I) and page 303 number 9I)

Me.

[........]

Hi guys
I really need help with complex numbers and argand diagrams!
Can u plz help me with these qs/
 Nov 06 q9 part 4
Nov 09 q7 part4
JUNE 10 V1 Q7 Part 3
THANK U

for November 06
Find the modulas of Ou which is SQR(2) and the modulas of the point (1,0) on the x axis which is 1.

therefore the least value of |z|=SQR(2)-1=0.414

[physichemaths]

http://www.xtremepapers.me/CIE/International%20A%20And%20AS%20Level/9709%20-%20Mathematics/9709_w10_ms_31.pdf

how to do question 7 part ii?

[physichemaths]

I am not sure but i think this is the solution to part ii

are u referring at me? question 7 is about vector :/