how did u go about it? I've tried spliting it into (a+x)^n * (a-x)^n then integration by parts, but i can't get it out. Should i use that special property: integral f(x).dx = integral f(a-x).dx (both with boundries a & 0)???
could someone point me in the right direction for this q, i've had a few attempts
boundries = a & 0
I n = (a^2 - x^2)^n .dx for n>=0
show I n = ((2a^2n)/(2n+1)) *I n-1 for n>=1
thanks :)