Integratoin by substitution (2 Viewers)

[kaz1]

using substitution u= 1 +lnx

 

[Trebla]

The substitution u = 1 + ln x implies that there is no lower bound on the integral...(x = 0 undefined)

 

[lolokay]

just looking at the question, that seems like a very strange substitution to make. is that definitely the substitution it asks for?

 

[Drongoski]

why not by parts ? [pi/4 + ln(sqrt(2)) ?]

 

[kaz1]

It's from the 1998 SBHS paper Q1b). I would do IBP but can anyone verify the question says substitution.

 

[Timothy.Siu]

thats actually a misprint for the next question, (the substitution is for the next question iirc), coz i've done this paper b4 and i was confused too.