Mathematics: Post your doubts here!

[Serial_Ripper]

Tension on both sides of the pulley is same, so the right angle can be split into 2 45 degree angles. If you resolve one of these, it's Tcos45.
Since there are 2 of these, the resultant is equal to 2Tcos45
2Tcos45 =4sqrt2

I DON'T KNOW HOW TO THANK YOU!

 

[Maged Asaad]

Who is done with his mechanics exam ??

 

[farhan141]

Need a quick reply!!!
View attachment 53514

 

[DeadlYxDemon]

View attachment 53538

 

[DeadlYxDemon]

Who is done with his mechanics exam ??

Meh!

 

[sj0007]

Hey I just have a doubt regarding paper 3 pure 3
When we make Argand diagrams can we make them on a graph paper during the exam?? Like how are they going to attach the graph paper to the answer booklet?
It might sound stupid but It just came in my mind

 

[ayushUcchil]

Hey I just have a doubt regarding paper 3 pure 3
When we make Argand diagrams can we make them on a graph paper during the exam?? Like how are they going to attach the graph paper to the answer booklet?
It might sound stupid but It just came in my mind

As far as I know you've got to do it on the lined paper itself. I just use my scale/ruler to make an accurate graph. It takes only 2-3 minutes. I use the scale of 0.5cm=1 unit.

 

[sj0007]

As far as I know you've got to do it on the lined paper itself. I just use my scale/ruler to make an accurate graph. It takes only 2-3 minutes. I use the scale of 0.5cm=1 unit.

Hmm I also usually do this but the other day I saw graph paper in additional materials so was just thinking why would I need a graph paper in paper 3.

 

[yoyoyoyoyoyoyoyoyoyo]

http://maxpapers.com/syllabus-materials/mathematics-9709-a-level/attachment/9709_s14_qp_32/

s14 p32 q6(i) q7(7) q10(iii)

Anyone ? pls solve this quickly... :/

 

[TheJDOG]

http://maxpapers.com/syllabus-materials/mathematics-9709-a-level/attachment/9709_s14_qp_32/

s14 p32 q6(i) q7(7) q10(iii)

Anyone ? pls solve this quickly... :/

Very good question(Q7) ill do 6 and 10 for you soon
Edit: In first lines , sub in double angle cos2theta formulas to get rid of the 1 above and below

 

[TheJDOG]

http://maxpapers.com/syllabus-materials/mathematics-9709-a-level/attachment/9709_s14_qp_32/

s14 p32 q6(i) q7(7) q10(iii)

Anyone ? pls solve this quickly... :/

Here's 6 i) would you like a sketch of the diagram ?

 

[yoyoyoyoyoyoyoyoyoyo]

ok t

Very good question(Q7) ill do 6 and 10 for you soon
Edit: In first lines , sub in double angle cos2theta formulas to get rid of the 1 above and below

ok thanks dude. pls do the other two questions as well

 

[yoyoyoyoyoyoyoyoyoyo]

Here's 6 i) would you like a sketch of the diagram ?

how did you find AB ?

 

[TheJDOG]

how did you find AB ?

Ok ill sketch it now you'll understand more
Here you go, all good now?

 

[TheJDOG]

http://maxpapers.com/syllabus-materials/mathematics-9709-a-level/attachment/9709_s14_qp_32/

s14 p32 q6(i) q7(7) q10(iii)

Anyone ? pls solve this quickly... :/

Here's 10 iii)

 

[The Sarcastic Retard]

Best stats 1 notes plz??

 

[yoyoyoyoyoyoyoyoyoyo]

Here's 10 iii)

thanks a lot man. ive got more questions

s14 p31 q5(ii) q8(i) pls ?

http://maxpapers.com/syllabus-materials/mathematics-9709-a-level/attachment/9709_s14_qp_31/

 

[yoyoyoyoyoyoyoyoyoyo]

Here's 10 iii)

i know that the normal to plane is in x-axis direction but how did you find that normal ?

 

[NIM]

Guyzz I really need help for q#6 full q
N q#7 iv)

 

[NIM]

N ya guyzz do u have notes on complex numbers and vectors for p 3
Any help would b appreciated !!