Calc help

[SHOemup233 10+ year member]

Hey guys, I have a test tomorrow in class and am doing the take home for calc...and have to wake up at 6. Woo, ha but anyway. If anyone could help me in any way with any of the following problems...that would be really appreciated. If not. Well. No worries. =P

Indefinite Integrals of:

(cot2(x)+1) dx

cosx(tanx-secx)dx

and integral of 1+tan2(x)-cos2(x)

I know it's a long shot, theres a coup more i don't know also. But worth a try. Thanks guys

-Josh

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[Tiger Bass 5,000+ posts]

If you could find the rules for taking the anti derivative of the wave functions, I can help you out.

 

[SHOemup233 10+ year member]

cot2(x)+1 = csc2(x)

So...integral of csc2(x) is -cotx + c. im pretty sure at least. hell yea. lol now for the others

 

[SHOemup233 10+ year member]

I'll post up the rules in a second if i can't figure them out in 5 mins. Thanks man.

 

[dleccord 5,000+ posts]

integral cosx(tanx-secx)dx

= integral cosxtanx dx - integral cosxsecx dx

= integral cosx(sinx/cosx) dx - integral cosx(1/cosx) dx

= integral sinx dx - integral 1 dx

= etc...

 

[Fast1one 10+ year member]

I just finished multi-variable, forgot all that shit //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif Thank goodness for the Ti-89