Maxima & Minima Problems

1. Ans : (0,0) point of inflexion ; (-1, 1) max point ; (3/5 , 459/3125 ) min point.


2. Ans: (i) A = (0, 5) , B = (1, 7) ; M = (0.5, 6) (ii) y=-1/2x+6 1/4


3. Ans: x = 3, y = 18


4. Ans: r = 6 ; minimum surface area ; height (when r = 6) = 12 cm


5. Ans: stat value of A = 1600 m2 ; minimum value


Curves and Circles

1. Ans : (a) x^2+ y^2=25 ; (b) x^2+y^2-2x+10y+23=0


2. Ans: (a) centre (0, 0), radius = 6 ; (b) centre (1, 3), radius = 6
(c) centre (-6, 0), radius = 3

3. Ans: x^2+y^2-6x-2y+5=0

4. Ans: (i) C = (3, 4) , radius = 3 (ii) x^2+y^2+6x-8y+16=0

5. Ans: (i) x^2+y^2+10y=0 ; (ii) A = (4, -2) , B = (-3, -1)
(iii) y=7x-5 ;







Revision : Rate of Change / Matrix and Simultaneous Equations

1. Ans: dA/dt=0.0377cm^2/s (3 s.f.)

2. Ans: (b) dx/dt=28.6cm/s (3 s.f.)

3. Ans: (a) k = -5 ; (b) ; x=-4 , y=3 ; (c) k=/5 1/3.

Hello stranger, we are a class made up of 27 fatabulous people. We are from MANJUSRI SECONDARY - 4E2 Class of 2008 .& if you have got a problem with any of us.Just scram.Do not stain our blog with your nonsense.

Andrina Harrison Lee Ling[30th May 1992]
Apichaya(BRIGHT)[07th May 1992]
Chai Jia Yuan[03th November 1992]
Chan Hoi Ying[10th March 1990]
Chong Hui Ting[09th August 1992]
Ervina[11th December 1991]
Goh Si Ying[14th December 1992]
Hngoi Jia Hui[10th April 1992]
Janet Lau Shan Xiu[04th September 1992]
Lim Jia Ni[25th August 1992)
Lim Yi Zhen[15th April 1992]
Ling Peck Shan[27th December 1992]
Nita[03th September 1992]
Teo Kai Zhi[02th December 1992]
Catherine Toh Li Hong[05th June 1992]
Wong Meng Mei[22th January 1990]
Kim Xie Jia Jing[08th December 1992]
Yuliana[15th September 1990]
Bai Lu[18th February 1990]
Choy Kai Tat[03th March 1992]
Heng Qi Ping[24th November 1992]
Katsuhito Taira[12th May 1992]
Kelvin Kok[17th December 1992]
Derrick Lee Jie Min[28th May 1992]
Marcus Tan Yong Wei[27th May 1992]
Micheal Suwandi[11th September 1992]
Sear tin[26th February 1990]
Yong Zhen Jun[29th December 1992]

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