Originally Posted by

**amoochio46** hi

well looks like i found a good site to help me with my calc hw.

have a question on power series

the first one i wanna know if i did it right

1) find power series for f(x)=ln(6+x)

ln(6+x) = INTEGRAL 1/(6+x) = (1/6)INTEGRAL /(1-(-x/6)) = a/1-r

ln(6+x) = sum ar^n = sum (1/6)(-x/6)^n

(-x/6)<1 = -6<x<1

2) Use power series to find the integral of 3/(4-x^2) and then approximate the integral from x=0 to x=.9

kinda stuck on this one there are no examples like this in our book im guessing just do the same thing i did in question 1 right? could someone work this one out.

thanks

oh how do you enter in math formulas in on here?