Hi.

Yes, you are total violating the forum rules.

Well, CB gave you a perfect answer, I'm going to quote him (you can read it here : http://www.mathhelpforum.com/math-he...tml#post327278 )

And you should give him "thanks" for his post, I already gave him reputation...

I quote again and explain the last obvious step

(1)

so:

(2)

you see what happened here? Just substitute n := n/2 in (1)

And now lets take a closer look to (1):

Do you see the T(n/2)? You know T(n/2), it is '(2)'

Just use (2) in (1)

((2) in (1))

You get it now?

Yours

Rapha