Question from http://www.sgforums.com/forums/2297/topics/331391
(1) Integrate [(x + 1)3 + 1](x + 1)2
(2) Integrate (x5 + 1)/(x + 1)
(3) Integrate 2 sin2 x
(4) Integrate sin4 x cosx
(5) Integrate (1 - sin2x)/(x - sin2 x)
*************************
Answer:
These questions are from an IP school. The questions might be a little too tough for normal O levels, but a bit too easy for A levels. So I shall leave it as O levels. Just try ;)
**(1)

(2)

(3)

**(4)

**(5)
