🚀 go-pugleaf

Got some problems, especially with those;

I'd like to know if these series converge or diverge ? (The result equals
to a reel nomber or not)

(These are series...)

�
�          3/(n^(2)+1)
n=1


�
�         1/�((n^2)+n)
n=1

�
�        n!/2^n
n=1

�
�        n/3^n
n=1




I try to find out the sum of this serie;

  (3)+(9/5)+(27/25)+(81/125)+(243/625)



I try to find out the Mac Laurin's serie of these fonctions...

f(x)=e^(4x)

f(x)=xsinx

f(x)=sinx + cosx



You can do these and still love maths ?!

jean_moreau@itr.qc.ca

-- 
J'MOR