Maths P1 2011

[markskoop]

yes d answer is 4..however i think -4 should also be taken as the line could b above or below ab........

 

[markskoop]

4 should be multiplied by vector AB isnt it??????????????????????

 

[nikhil000]

okay, i think we can discuss now....how did it go fellas?? the paper was quite easy expect for the radian question. i guess the threshold will be 60-63

 

[sea_princess]

guys what was the stationary point you got( I can't remember the number of the question, guess it was question 8)?

 

[nikhil000]

i think i got it 8 and 0. and what was the answer of ratio question?

 

[sea_princess]

3:2
you sure ?cause I got a different stationary point ,but the boundries for the volume was 8 and 0 still

 

[nikhil000]

i think so..what did you get..the answer for volume was 256/3 pie ...rt?

 

[sea_princess]

yup
question 2 (the one of the sine and cosine) parts ii and iii ,you get them from the curve or you calculate them yourself?

 

[nikhil000]

i did it my self .. but it could be obtained from the curve too.

 

[nikhil000]

please predict the threshold .i guess it would be 60..what do you guys think?

 

[1357913579]

what was the answer for no. 1 wassnt is 160 there people saying 400 how explain

 

[1357913579]

comeon someone explain

 

[phro5031]

what about the range of sinx<cos2X , and the sum of positive terms in the series , and the ratio is 3:2 ? , and the perimeter of the shaded region?? was it 16.20 or 14.20?? , the stationery pt. was (4,4) , and the range was 8 to 0 for the volume ??

 

[1357913579]

yes i think so can you please tell me the answer of coeffecient of x^2 in the expansion

 

[phro5031]

its 400 but i made it wrong , cuz you will replace every y in the A , with the (2x-x^2)
you will have -80(2x-x^2)+80(2x-x^2)^2

 

[phro5031]

what was the range for sinx<cos2x??? and what about the perimeter , is it 16.20???

 

[sea_princess]

range was x<30 and x>150 ,
the perimeter was 16.20 I guess

 

[djdead1]

Does anybody have the official answers to this paper ? please put it up

 

[sea_princess]

I don't think answers will be available now ,I believe markschemes will be available after the results

 

[trk1994]

you guyss whatss the value of k!!!!!!!!