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The questions are from the partial fractions section to clue you in on how to maybe go about this

I'll give you short answer of tan
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for the other one ... use weistrass subs ... doesn't look nice to me.

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I've seen it couple of times.

and what is "weistrass subs"

looks like you have simplified it so nicely ... |dw:1349542787800:dw|

what hapens to the 4?

i tried taking the 4 out so its 15/256 or something then doing the arctan thing

Buhaha, you took a picture of your notebook XD Nice handwriting at least c:

yeah that would even make it nicer. |dw:1349542995485:dw|

roflmao "nice", yes.

thnx zep, it's easier for you guys to see and understand the problem that way roflmao

It's bubbly like comic sans, and it's legible XD hehe

is that right ex?

1/(15/256) arctan [(u+1/8)/(sqrt (15/256))]

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a^2 = 15/256 so a is sqrt(15/256) right

and screw weierstrass

I don't like Weierstrass either