23. prove that lim +...+ v(2+1) n2i? +2) (2 +n) 24. show that lim (n +1) (n +2) (2m) =0,1>l 25. a sequence< s,> is defined as follows s =a>0,s +1 = v{(ab + s)/(

23. Prove that lim +...+ V(2+1) N2i? +2) (2 +n) 24. Show that lim (n +1) (n +2) (2m) =0,1>L 25. A sequence< s,> is defined as follows S =a>0,S +1 = V{(ab + s)/(a + )),b> a, n21 Show that< s, > is a bounded monotonically increasing sequence and lim s, = b.