ATAR Notes: Forum

VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Mathematical Methods CAS => Topic started by: cinnamonbun on November 06, 2008, 08:52:44 pm

Title: anti derivatives
Post by: cinnamonbun on November 06, 2008, 08:52:44 pm

im just making sure
when they ask for AN antiderivative do you do no +c?
and when they ask for THE anti derivative u add +c?

Title: Re: anti derivatives
Post by: rowshan on November 06, 2008, 09:01:06 pm

i think people have concluded that both are correct...its on some of the other thread dunnoe where though  :o

Title: Re: anti derivatives
Post by: Pandemonium on November 06, 2008, 09:10:39 pm

Quote from: cinnamonbun on November 06, 2008, 08:52:44 pm

im just making sure
when they ask for AN antiderivative do you do no +c?
and when they ask for THE anti derivative u add +c?

they noted it in a assessor's report that yes, if it says 'an/a', then don't include c.

Title: Re: anti derivatives
Post by: cinnamonbun on November 06, 2008, 09:15:43 pm

oh okayy thank you
i was just making sure.. im getting nervous now = =''

Title: Re: anti derivatives
Post by: Butler on November 06, 2008, 09:40:26 pm

Sorry to hijack the thread, but would someone be able to help me with integration by recognition? I really don't understand it. Here's an example:

a. Find the derivative of loge (cos(2x))

b. Hence find the anti-derivative of tan (2x)

I did step a (I got -2 tan (2x)) but I don't know where to go from there.

Title: Re: anti derivatives
Post by: Quickclaw on November 06, 2008, 09:47:27 pm

http://vcenotes.com/forum/index.php/topic,7092.0.html <- very good =)

Title: Re: anti derivatives
Post by: Butler on November 06, 2008, 09:48:31 pm

Excellent, thank you.

Title: Re: anti derivatives
Post by: rowshan on November 06, 2008, 10:21:24 pm

to the starter of the thread....
sorry for my bad advise. don't hate me.