Question

Va rog ex 1 si 2.......

Answer 1

1.
x=2,(3)+[(-2/3)⁻²]¹⁰⁰² · (-4/9)¹⁰⁰¹
x=(23-2)/9+[(3/2)²]¹⁰⁰² · (-4/9)¹⁰⁰¹
x=21/9+(9/4)¹⁰⁰² · (-4/9)¹⁰⁰¹
x=7/3-9/4
x=(28-27)/12
x=1/12

2.
n= (12/11-1) +(13/22-1/2)+....+(110/1089-1/99)
n=(12-11)/11 + (13-11)/22+.....+(110-11)/1089
n= 1/11+ 2/22 +....+ 99/1089
n=1/11+ 1/11+....+1/11          (avem 99 termeni)
n= 99* 1/11  se simplifica si da
n=9
√9=3

n este patratul numarului 3