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haha thanks for advice! I will use them and for sure will get the highest grade! :D anyway if you have any other suggestions beside avoiding balls, I will be grateful

So I am suposed to perform a oral presentation for my English lesson about a problem related to the English speaking countries. I have no idea for a topic.
The whole presentation should take about...

I know that I have to, but don't have now time to revise it. Anyway thanks for help

so the formula is when f(x)= a^x then f(x)'= ln x * a^x , isn't?

Thoose constant are not zero, but imo it's should not be a problem, or I didn't understand your idea. Anyway the main problem which I have is how to differentiate when the variable is in power of...

I have ti-84 which can't calculate it. Does anybody has a "emulator" for pc which works like thic calculator?

Anybody know how to differentiate this?
1,6^xA - B*(1,6^x -1)/(1,6-1) ?
A and B are constants, x is variable.
I do not how to do it and can't kind any solution. Thanks in advance

Stop motion much beter imo, they spent 1 day filming so actually it's a lot of time for 2 minutes movie,

sick as previous:D especially shots! can't wait for next issue

smth shorter?

Does anybody know any good Halloween story? My English teacher asked me to bring one on the next lesson i.e. tomorrow. It has to be up to 5 minutes (about 500 words) and be scary.

I have got ti-84 plus, but I can only calculate the integral for specifics value, not with unknowns. is there the same program like in ti-89 but operating on ti84?

how do you manage to jump so high ?

if you stacked at derivatives, don't even try integrals!
do you know any program to sloving integrals for calculator? something like this http://integrals.wolfram.com/index.jsp ??

I can't wait til December. Release it at my birthday ( 14th) :D

There is a huge skim scene in Poznan. One of the polish skim comapny Pakalolo has its roots there. Also there were about 4 contest this year there.

nice to hear such opinions. In fact this chick on page 45 is a reporter in TV channel, but don't get deceived, not all girls in poland have this haircut.

Yeah, it's showed in the movie. Do you have any sites in english about skimboard in Netherlans or tell me the best spots

Do you have bigger waves in the Netherlands? Next week I propably i will be in Amsterdam is it worth to take skimboard?

nice video, Will you organise any contest this season?

i weight 92 kg it's about 200 lbs but i'm not sure

pretty big waves are only on some spots and during specific conditions (like storms), so they occure very rarely. want more information: www.skimboarding.pl

I'm looking for big board. I'm quite big and additionaly in Poland there are small waves so I need realy hug stuff. It should be 54 inches at least. Any suggestions?

last one really huge

additionaly if you have mounted center, you have better balance on rails