Maths P1 2011

[IgoforA]

u guys are taking what maths paper p11,p12orp13?

 

[phro5031]

paper 12

 

[noga0007]

please guys... for those who did 12 ...I have too many doubts ...
first : for the first question .. the coiff of x^2 ... I did it 400 ... right ?
second : In the last question ..sequence ... I thought the difference between 2012 and 2022 is 10 years only not 11 ... so I calculated among the rules with the 10 years concept,,, . so will I get 0/4 ?? ,,,

 

[Banglarbagh]

Coefficient of x^2 was 80 not 400..!!!!

and in the sequence part it said inclusive 2012 -2022,
so 11 u mst have calculated takin 11..!!!

# hw did u solve the vector thing, magnituted 28 was given
and it was in the samne direction of AB..????

# In the Co-ordinate geometry maths what ws the ratio.??
AM:MC..????

 

[markskoop]

regarding dat coefficient of x^2,i guess...it has to be 400.coz we weree supposed to write the coefficient from d second question after substituting the value of y..isn't it??

 

[Banglarbagh]

yah.. we were supposed to use the xpansion from part (a) wch was lyk ( 32 - 80 X + 80 X^2 )..
wt ws da secnd part agan i frgot..????

 

[markskoop]

ya.the first part was d one u wrote.however.in second part when we open the bracket and square,,,finally we get the result in two terms of x^2,,which when we add,,,400 is obtained..i did the same thing......

 

[Banglarbagh]

can u please quote the second queston..????

 

[markskoop]

i don remmeber exactly tara it was like.find d coefficient of x^2 in (2+(x-x^2)^2)............

 

[markskoop]

(2+(x-x^2)^5

 

[markskoop]

In the graph if more dan two boxes are skipped while labeling how much will be deducted???????????

 

[Banglarbagh]

more den 2 boxes slipped wt does dat supose to mean..???
Btw hw many marks ws dere for Q. 1 (b)..???

 

[markskoop]

there was 2 marks i guess for q no 1 (b).................. in graph while giving maximum n minimum range of the sin curve n cosine one

 

[markskoop]

dat skipping the boxes. won't mater..coz the only thing cie sees is the nature of the graph and the requirement of the question so better not worry......nd den i guess 1(b) was worth 3 marks............

 

[markskoop]

bt i think it was of 2 marks n Q no 1 was of 3 marks

 

[Banglarbagh]

No idea abut ur skippin of boxes bt i gt dat one ri8..!! Newys i gss i mssed up in 1(b)..!!

wt abut he ratio of AM:MC ..?? wt ws da answer.????

 

[markskoop]

3:2

 

[trk1994]

you guyss what about question 8 what was your stationary pointt?? anddddd in graph what ws the x range values???
for the ratio i got 4:1 :s:s

 

[1357913579]

is it a mistake if i write 1.5 is to ratio 1 as the answer is 3 ratio 2 please helppppppppppppppp

 

[vaishster]

vector with magnitude 28... tat question we had 2 multilply vector AB by 4 rite??