Mathematics: Post your doubts here!

[ahmadumar]

didnt understand Q 24 oct/nov 12 paper 23
here is link http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w12_qp_23.pdf

Q24 is easy and i would like u to try it.
so here is what to do and if u still dont get then tell
For (a) part the question says ABCD is horizontal and BCQP vertical this tells that any angle between these two will be 90 so by finding one other length find DP by pythagoras
then for (b) part use sin rule to find the angle

 

[ahmadumar]

in exam how to write the ans of q14
-3 or 3
3


here is link http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w12_ms_23.pdf

+ - 3. try writing both of them as in mark scheme

 

[ahmadumar]

Can someone please help me solve these , Q16 mj2010,Q 16 ,Q 17 and Q22)d mj2009. How can we do rotation( transformation in general) if the center isn't (o,o). I'm sorry too many things to ask

can u please specify the variant ^_^

 

[MÁťT PŭמҚ]

can anyone help with all these questions may june 2009 p2 1

 

[My Name]

hehehe dont worry. just do heaps of practice.
practice makes a man perfect

and woman tooooo (hahaaa i just had to write a stupid joke!)

 

[ahmadumar]

View attachment 40404
can anyone help with all these questions may june 2009 p2 1

 

[ahmadumar]

and woman tooooo (hahaaa i just had to write a stupid joke!)

hahaha this thing came in my mind while i was writing the line

 

[ahmed butt]

Q24 is easy and i would like u to try it.
so here is what to do and if u still dont get then tell
For (a) part the question says ABCD is horizontal and BCQP vertical this tells that any angle between these two will be 90 so by finding one other length find DP by pythagoras
then for (b) part use sin rule to find the angle

did not understand meaning of that any angle between these two will be 90 (oct/nov 12 paper 23 of q24 (a)
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w12_qp_23.pdf

 

[ahmed butt]

+ - 3. try writing both of them as in mark scheme

thanks

 

[ahmed butt]

cant understand q1 of oct/nov 2012 paper 21
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w12_qp_21.pdf

 

[ahmed butt]

did not understand q14 and q16 of oct/nov 2011 paper 23
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w11_qp_23.pdf

 

[ahmadumar]

did not understand meaning of that any angle between these two will be 90 (oct/nov 12 paper 23 of q24 (a)
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w12_qp_23.pdf

look the diagram in ur question is a bit like this. in (b) part the triangle is a bit like this. can u see both the red lines. one line is on the horizontal plane and the other red line is on the vertical plane. meaning on is horizontal and the other is vertical. look in the 2nd pic the angle between vertical and horizontal is 90...
and for the first pic download it and rotate it 180

 

[Sweet!]

how to solve this question???

 

[My Name]

it like this cube root means to th power of 1/3
so 27^1/ and p^1/3
so we can write 27 as 3^3
so we write 3^3*1/3 ans p^27*1/3
then it becomes 3^1( becuz 3 and 3 get cancelled) and p^9 (becus 27/3 =9)
so answer is 3p^9
thats how u do it
do u understand

 

[Sweet!]

it like this cube root means to th power of 1/3
so 27^1/ and p^1/3
so we can write 27 as 3^3
so we write 3^3*1/3 ans p^27*1/3
then it becomes 3^1( becuz 3 and 3 get cancelled) and p^9 (becus 27/3 =9)
so answer is 3p^9
thats how u do it
do u understand

wow. thanks a million!

 

[My Name]

btw to learn indices frm stcratdh check this link
http://www.schoolworkout.co.uk/GCSE.htm#GCSE

 

[My Name]

wow. thanks a million!

no prob! btw u shud try the link i did to

 

[Sweet!]

kk. thanks again

 

[My Name]

kk. thanks again

ur most welcum

 

[R.M2013]

http://papers.xtremepapers.com/CIE/...s (with coursework) (0581)/0581_w12_qp_21.pdf
Q-10?? Anyone plz?