Mathematics: Post your doubts here!

[asd]

cos4a=1-2sin^2(2a)
2sin^2(2a)=1-cos4a
sin^2(2a)=(1-cos4a)/2
Now integrate it.......

Dude, you're a genius. You must be taking Further Maths Lel.

 

[Snowysangel]

cos4a=1-2sin^2(2a)
2sin^2(2a)=1-cos4a
sin^2(2a)=(1-cos4a)/2
Now integrate it.......

Where did u get the equation 2sin^2(2a)=1-cos4a from?

 

[Angelina_25]

Where did u get the equation 2sin^2(2a)=1-cos4a from?

We cant integrate sin^2(2ø) straight away .....so we have to apply a formula ...which is Sin^2(ø) = 1-cos2(ø) over 2
-----so in this case =1-cos^2(2ø) over 2
Hope i helped

 

[Snowysangel]

We cant integrate sin^2(2ø) straight away .....so we have to apply a formula ...which is Sin^2(ø) = 1-cos2(ø) over 2
-----so in this case =1-cos^2(2ø) over 2
Hope i helped

Yeah you did...but that's the p3 formula right? Are you giving p3 this year too?

 

[Angelina_25]

Yeah you did...but that's the p3 formula right? Are you giving p3 this year too?

Yes and yes!

 

[sumeru]

Where did u get the equation 2sin^2(2a)=1-cos4a from?

If you have cos^2, sin^2...you can't integrate them directly..so at first you have to conver them to integrate

 

[abruzzi]

which question?

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_w12_qp_31.pdf
8 (ii) looks pretty simple but I'm just unable to solve it.
Will appreciate your help

 

[M.H.Q]

Is the formula sheet given in syllabus for each paper the same as the one given in exams???

 

[M.H.Q]

Is the formula sheet given in syllabus for each paper the same as the one given in exams???

 

[M.H.Q]

Is this exactly the same as given in exam
http://papers.xtremepapers.com/CIE/...d AS Level/Mathematics (9709)/9709_y14_sy.pdf

 

[M.H.Q]

Does anyone have a really nice guide for M 1? Any nice book or some notes online.

 

[Thought blocker]

Does anyone have a really nice guide for M 1? Any nice book or some notes online.

Hope this helps you, I have only this, and I'll recommend you to use this site --> http://www.examsolutions.net/maths-revision/syllabuses/CIE/period-1/M1/module.php

 

[Thought blocker]

Please, Uff, they are tough for me :'(
Solve full question... And in Q10 Just last two parts.
Thanks in advance Suchal Riaz ZaqZainab

 

[asma tareen]

U mean the whole paper?

 

[Thought blocker]

U mean the whole paper?

Yeah :'(

 

[Thought blocker]

U mean the whole paper?

And in question 4 tell me how to find gradient of line L1 ?

 

[asma tareen]

I think you should calculate the gradient of OB as it will be para
lel to AC

Please, Uff, they are tough for me :'(
Solve full question... And in Q10 Just last two parts.
Thanks in advance View attachment 39697View attachment 39698View attachment 39699View attachment 39700View attachment 39701

 

[Thought blocker]

I think you should calculate the gradient of OB as it will be para
lel to AC

Oh yeah! It was easy thanks, and if you can solve rest, do tell me.

 

[asma tareen]

I'm trying but I'm no good

 

[Thought blocker]

I'm trying but I'm no good

Just do what you can! Ty.