Maths, Addmaths and Statistics: Post your doubts here!

[Fallen316]

in chapter 1 , sets.
Union means OR
Intersection means AND.
Right ?

 

[shezi1995]

Well yup man thats the biggest problem and thats one of the long reasons i will leave Coordinate geometry if it comes in the option part its ttooooooo lengthy !



Are talking abt that Modulus wala formula then man its not allowed and if u use it they give u like 1 mark out of the three check the MS they state it there !

Could you give the year of the mark scheme that says that the modulous formula is not allowed?(just to confirm)

 

[thughamza]

Could you give the year of the mark scheme that says that the modulous formula is not allowed?(just to confirm)

Modulas forumla is allowed i have seen soo many marking schemes say that it applies the modulas formula . KTBFFH

 

[Spidey21]

in chapter 1 , sets.
Union means OR
Intersection means AND.
Right ?

in union you take both of the sets and add them
in intersection you take the common ones
see for yourself which is OR or which is AND!!

 

[Fallen316]

in union you take both of the sets and add them
in intersection you take the common ones
see for yourself which is OR or which is AND!!

o bhai ye pata hai
but when they ask you to write it in words , then ??

 

[Spidey21]

o bhai ye pata hai
but when they ask you to write it in words , then ??

hmm..interesting....

 

[Fallen316]

hmm..interesting....

o yar serious ho
e.g if they say
"Describe in words which students belong to the set (H n M)." ( H=History , M=Maths)
do we write " pupils who study History OR Maths)
or "pupils who study History AND Maths) ??

 

[Spidey21]

pupiles who study history and math!!

 

[Translucent231]

HUM = Students who study history and the students who study maths and the students who study both
HnM = Students who study history and maths.

i think that should cut it.

 

[Fallen316]

HUM = Students who study history and the students who study maths
HnM = Students who study history and maths.

i think that should cut it.

lol, arent these both the same

 

[Translucent231]

well the second means that the students who study BOTH history and maths, while the first means all the students who study maths and all the students who study history and all who study both.

 

[Fallen316]

well the second means that the students who study BOTH history and maths, while the first means all the students who study maths and all the students who study history and all who study both.

H U M = students who study history OR maths
H n M = students who study History AND maths.
these are correct. END OF DISCUSSION

 

[syed1995]

lol, arent these both the same

U means addition .. meaning you will first shade the H coloumn .. then share the M coloumn. (Students who study at least one subject from maths and history)

n means comman .. meaning you will shade whatever is in comman between H and M. (Students who study both the subjects)

 

[Fallen316]

U means addition .. meaning you will first shade the H coloumn .. then share the M coloumn. (Students who study at least one subject from maths and history)

n means comman .. meaning you will shade whatever is in comman between H and M. (Students who study both the subjects)

yar, this is not my question ..
forget it

 

[syed1995]

yar, this is not my question ..
forget it

 

[Translucent231]

haha .. he knows the concept.. he just wanted to ask how u put it in words

 

[asaadfazal]

in question#8 of http://www.xtremepapers.com/papers/CIE/Cambridge International O Level/Mathematics - Additional (4037)/4037_w11_qp_12.pdf i am getting midpoint (2,-1), gradient of AB=4/3, gradient of CD=-3/4 and the equation is turning out to be 4y+3x=2 but the marking scheme (http://www.xtremepapers.com/papers/CIE/Cambridge International O Level/Mathematics - Additional (4037)/4037_w11_ms_12.pdf) says other wise and i am getting 2 answers for both part 2 and 3 which are both included in the marking scheme. So can some one please post a correct solution or tell what am i doing wrong here or is there a miss print some where which i think would hardly be the case.

please someone reply

 

[HarisLatif]

in question#8 of http://www.xtremepapers.com/papers/CIE/Cambridge International O Level/Mathematics - Additional (4037)/4037_w11_qp_12.pdf i am getting midpoint (2,-1), gradient of AB=4/3, gradient of CD=-3/4 and the equation is turning out to be 4y+3x=2 but the marking scheme (http://www.xtremepapers.com/papers/CIE/Cambridge International O Level/Mathematics - Additional (4037)/4037_w11_ms_12.pdf) says other wise and i am getting 2 answers for both part 2 and 3 which are both included in the marking scheme. So can some one please post a correct solution or tell what am i doing wrong here or is there a miss print some where which i think would hardly be the case.

I'm getting the same answer as yours. There may be something wrong with the marking scheme.

 

[HarisLatif]

http://www.xtremepapers.com/papers/CIE/Cambridge International O Level/Mathematics - Additional (4037)/4037_w11_qp_23.pdf
I need help in the 12 Question OR part (i) and EITHER part (iii)

Somebody please help me in these questions.

 

[mastermindh]

Somebody please help me in these questions.

OR i)

Uses product rule on the equation of y to derivate it.
Find the gradient at A(0,1)
use m1m2=-1 to get m at B
Find B