1) A=3 B=-1
1b) 8/3ln5
2)ai r=root 29 alpha=1.19
2bi) max value root 29 x=5.09
2bii) x=0.568 or 5..72
3a) d=1
3b) (2x+1)(2x-1)(2x-3)
c) h(x)=(1=2x)^-1 differentiate shows its decreasing
4a) 1+x-2x^2
4b)i 1/4 -x/16+5x^2/256
bii) 0.2313
5a)gradient of normal =-1/2
5b) equation of normal y=2x-1/2
5c) x cooridinate -1/8
6a) 60 degrees (3 marks)
6b) (15,3,2) (4 marks)
6c) (23,3,0) and (11,0,0) (4 marks)
7a) 1/4-ln2 (1 mark)
b)11/8 (6 Marks)
8a) x=9/20-1/2(t+1)-1/20(1+t)^2 (7 marks)
b)dr/dt=k/pir^2 (3marks)
c) 3 (2 marks)