Mathematics: Post your doubts here!

[Heyyy]

I posted a doubt above,plz solve it anyone?

I've solved the question but I've no idea how to post it here.
Could you please tell me how do we so that I can post it here?

 

[Suchal Riaz]

I've solved the question but I've no idea how to post it here.
Could you please tell me how do we so that I can post it here?

Write it on a piece of paper, take a photo of it. Upload it here.

 

[Suchal Riaz]

Thanks!

Who is the greedy dig u r talking about in ur signature?

 

[M Haseeb Javed]

Who is the greedy dig u r talking about in ur signature?

Its greedy "dog" reference to the elementary story.

 

[Heyyy]

Write it on a piece of paper, take a photo of it. Upload it here.

I don't get it,how do we upload it here?
I'm on from mobile !!!

 

[Heyyy]

I posted a doubt above,plz solve it anyone?

Similarly you could use the other complex number found in part I) and find two more roots

 

[Talha Irfan]

Thanks!

you're welcome

 

[C'khat]

Can anyone help me out with chapterwise pastpapers of Mathematics P3?

 

[M Haseeb Javed]

???

 

[wohooo]

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_w09_qp_32.pdf please help me no 10 part iii

 

[asma tareen]

May june 2013 42 Q3 can anyone tell me y r we using lengths to calculate forces :"/?? Sorry cant post the link

 

[asma tareen]

Saad Mughal Suchal Riaz usama321 please Allah k naam py btaado mujy :/

 

[Kamihus]

May june 2013 42 Q3 can anyone tell me y r we using lengths to calculate forces :"/?? Sorry cant post the link

We use the lengths to calculate the angles between them so they can be applied in the formula.

 

[asma tareen]

We use the lengths to calculate the angles between them so they can be applied in the formula.

Ohhhhhhhhh :O thank u

 

[Saad Mughal]

May june 2013 42 Q3 can anyone tell me y r we using lengths to calculate forces :"/?? Sorry cant post the link

The lengths will be used to calculate the angle between the weight (vertically downward from P) and the tension force in string PA. AND, the angle between the weight (vertically downward from P) and the tension force in string PB. These will equate to 36.9 deg. and 67.4 deg. respectively. Then you can draw the triangle of forces to and use sine rule or similar to equate the tensions.

 

[Saad Mughal]

???

(i) The possible values of Y are 0,2,4. Calculating probabilities,
P(X=0) = 0.5*0.5 + 0.4*0.4 + 0.1*0.1 = 0.42
P(X=2) = 2*(0.5*0.4) + 2*(0.4*0.1) = 0.48
P(X=4) = 2(0.5*0.1) = 0.10
Draw a table and put the values of y and P(Y=y) accordingly.

(ii) Expected value = 0*0.42 + 2*0.48 + 4*0.10 = 1.36

 

[asma tareen]

The lengths will be used to calculate the angle between the weight (vertically downward from P) and the tension force in string PA. AND, the angle between the weight (vertically downward from P) and the tension force in string PB. These will equate to 36.9 deg. and 67.4 deg. respectively. Then you can draw the triangle of forces to and use sine rule or similar to equate the tensions.

Thank u !

 

[wohooo]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w09_qp_32.pdf please help me no 10 part iii

http://papers.xtremepapers.com/CIE/...AS Level/Mathematics (9709)/9709_s08_qp_3.pdf no 4,no 5 and no 10.
please.

 

[Heyyy]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s08_qp_3.pdf no 4,no 5 and no 10.
please.

Q4...

 

[Heyyy]

Q4 part II