be {an} Definition by the Recurrence relation Formula (as you can see in the picture).
is also known that n >or=1 and a1=2

A)prove that for any n >or=1 Existing 1<or =an< or =3
http://p1cture.me/images/30404785521466373002.jpg

thanks

Consider the limit

L=\frac{4L-3}{L}

L^{2}-4L+3=0

OK I will try.
Thank you