Mathematics: Post your doubts here!

[iqraa nadeem]

Also with http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_s11_qp_31.pdf
q8 part ii and iii

 

[iqraa nadeem]

I'll be so much thankful, if someone helps me with these =/
here's the link for nov11/33 i need help with q10
http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_w11_qp_33.pdf

Also with http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_s11_qp_31.pdf
q8 part ii and iii

 

[redapple20]

Hey can sum 1 tl me tat Formula wen we integrate and we Cant use ln because the power of x in the denominator
is Not linear? The 1 tat goes like 1/a and tan sumthing?
plx tel asap have ppr tommz!

 

[Chooi1993]

How to get the initial value for q4 ?​

http://www.xtremepapers.com/CIE/International A And AS Level/9709 - Mathematics/9709_s11_qp_32.pdf​

I cant understand . Can u give me the solution ?

 

[kinal]

why is it "360-50.7"
I dont undestand this part
"in 2nd quadrant, only sin is +ve
then, do 360-190.4=169.6
then, 180-169.6=10.4"

cos is only +ve in the 4th quadrant, meaning it is -ve in quadrant 2 and 3
cos 169.6 gives u -0.9835....u have to get a +ve value for X... u could just do 180-169.6.
cos 10.4 is +ve...m not sure if this is clear.

 

[Chooi1993]

How to get the initial value for q4 ?​

http://www.xtremepapers.com/CIE/International A And AS Level/9709 - Mathematics/9709_s11_qp_32.pdf​

 

[Mobeen]

http://www.xtremepapers.com/papers/...AS Level/Mathematics (9709)/9709_s03_qp_3.pdf
http://www.xtremepapers.com/papers/...hematics (9709)/9709_s03_ms_1+2+3+4+5+6+7.pdf
Q2(ii) . the integral of cotx is ln sinx . but after substituting the limits how can we get the answer stated ?

 

[angelicsuccubus]

http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s03_qp_3.pdf
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s03_ms_1 2 3 4 5 6 7.pdf
Q2(ii) . the integral of cotx is ln sinx . but after substituting the limits how can we get the answer stated ?

Oh I did that question in the morning..

 

[Mobeen]

Oh I did that question in the morning..
View attachment 9658

oh ! thanks a lot !

 

[angelicsuccubus]

guys which integrations and differenciations for trig do we have to know?

 

[Keitak]

cos is only +ve in the 4th quadrant, meaning it is -ve in quadrant 2 and 3
cos 169.6 gives u -0.9835....u have to get a +ve value for X... u could just do 180-169.6.
cos 10.4 is +ve...m not sure if this is clear.

thanks for your help I finally undestand it!

 

[angelicsuccubus]

oh ! thanks a lot !

anytime =]

 

[angelicsuccubus]

Hey can sum 1 tl me tat Formula wen we integrate and we Cant use ln because the power of x in the denominator
is Not linear? The 1 tat goes like 1/a and tan sumthing?
plx tel asap have ppr tommz!

you mean the uv method? ...

 

[redapple20]

No 1/tan inverse sumthing

 

[Khoo Hing Yee]

How to know the Argand diagram should be a circle or parallelogram ?

 

[bumble26]

http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_w11_qp_33.pdf

how to differentiate no.2? I know its using division differentiation but can anyone show me? thank you.

 

[redapple20]

Plx help sum1!

 

[reina81]

Posted this earlier as well can some one PLEASE HELP
ON11, P33, Q8

http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w11_qp_33.pdf
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w11_ms_33.pdf

 

[angelicsuccubus]

Plx help sum1!

show me a question.. cause I can't think of any such integration. -_- In fact, check the syllabus and then ask again

 

[angelicsuccubus]

http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w11_qp_33.pdf

how to differentiate no.2? I know its using division differentiation but can anyone show me? thank you.

I'm in a rush so I won't do it unless you really need help but substitude e^2x with y