Integration qn

last SG · 2007-10-27T22:33:18+00:00

lol. The by parts method is really unexpected. Try this question. Very interesting too. Have to use tamago method to solve it.

It looks easy but somehow I forgot what to sub liao. Crying or Very sad

where got liddat wans Laughing it works for 2x but not for 2x². Sad

But,

ok i've got the answer (as below) but the methods seems tedious. Confused

I would try integrating by parts.

confirm not.

hmm on closer inspection doesn’t seem like it

factorize the 3 out and sub sqrt(2x/3) = sin theta

sigh!! always careless. so deleted

deleted cos of carelessness.

Finally done. Maths C (9233) J83/P1/Q20. Confused

told you liao =)

using substitution method

tanjun i was there but i gave up eventually. good one. Laughing

lol. Thanks. I was careless for both the substitution part and by parts. My maths is really rusty after not practising for 2 yrs.

tamago still taking a lvl meh?

use Word to type and then print screen? Shocked

Mine also. This one requires a bit of inconventional thinking and really caught me by surprise. Laughing

yeah. havent take leh. Embarassed

..... i thought taken last yr already... Laughing