haha this paper was far much better than the previous 2.. the easiest of the 3 so far... lolz..
it was a 3 hr paper. but i finished 40mins before.. i thought i missed out qns -.-.. kept checking.. haha even having time to sub back ans to ensure the ans correct..
haha as far as i can remember, my answers were:

1. complex roots of z^4 - 2z^3 + 6z² - 2z + 5 = i, -i , 1 + 2i, 1 - 2i
2. dr/dt = 0.0637 m/s
3. 3sin2x + 2cos2x
root 13. sin(2x + 0.588); k>root 13, k<-root 13 gen soln => x = npi/2 + [(-1)^n]0.141 - 0.294
4. S = 2/3 a
5. approx of roots x = 0.82

22. IVF failure 0.8%
a) P(X=6) = 0.00881
b) P(X=6/X less than 8) = 0.273
23. mass of pineappples qn
a) P(Tless than 11.2) = 0.715
24. length of function a - b(x-1)² tt one
mode = a
why a more than equal to b? bcoz f(x) is equal to 0 or more
25. average 1 flaw in 100m
P(X more than or equal to 3 in 200) = 0.323
Length such tt no P(no flaw) is 0.001 = 691m
P( less than 12 flaws in 2000m) = 0.0287
26. height of popn qn
proven that P(H more than 1.81) is 0.20
80 ppl P(Hbar more than 1.69) = 0.0112
H~N(1.6378, 0.2045²)
27. saw mill qn
pdf : f(x) = { 16.67 , l-0.03 to l +0.03
0 , otherwise
28OR pin drop qn
n=90, Ps = 0.73335
test whether p more than 2/3: yes
p = 0.7 n = 90
P(2nd trial same result as first) = (90C66 )[o.7^66](0.3^24)
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haha such an irony. now that i do not go online as frequent as last time, i blog everyday.
but might as well. to hav some contact with the world. or else i will be devoid of human contact. but again, im blogging. not meeting anyone. prob juz a means of expressing myself. gp tmr. cya