haha the paper was rather challening today. i cld do all in time i guess. except for the functions question. i was thinking too hard.. trying to split the x^2 square into 2 different functions o.0 hhaa.. here are some of the ans i can rmb

trap rule 0.98 something
estimation of area using anothre method = 0.933

P&C 589 and 220

3d trigo = 63 and 127

tan3x = -1/4

if b =1 , t = 1/8 and s = -14/25

b = 2and 1/8 or something in first part.

range (-9w^2 to infinity)

anyone check with me? pls tag..
wahah.. topics coming out: complex, maclaurin series, apgp, approx of roots.