Răspuns :
(x - 1)/2010 = 333/335 x-1 = 2010·333/335 = 1998 x = 1999
2) 29-20+1 = 10 termeni
1/29 < 1/20 !/28 <1/20 ...........1/21 < 1/20 ⇒ S < 10·1/20 S < 1/2 ⇒ S < 2/3
1/20 > 1/21 > 1/22 > 1/23 >.........>1/29 S > 10·1/29 S > 10 /29 S >10/30 S >1/3
2) 29-20+1 = 10 termeni
1/29 < 1/20 !/28 <1/20 ...........1/21 < 1/20 ⇒ S < 10·1/20 S < 1/2 ⇒ S < 2/3
1/20 > 1/21 > 1/22 > 1/23 >.........>1/29 S > 10·1/29 S > 10 /29 S >10/30 S >1/3