Question

Buna ma poate ajuta cineva urgent la exerciutiul acesta ?
Efectuati calculele si scrieti rezultatele sub forma de fractie ordinara ireductibila:
a) (-1/2) la puterea -1
b)(5/4) la puterea -2
c) (0,(6) ) la puterea -3
d) 2/3 la puterea 4 • 2/3 la -2
Multumesc !

Answer 1

(-1/2)^-1=-2/1=-2

(5/4)^-2=(4/5)2-16/25

(0,(6))^-3=(6/9)^-3=(9/6)^3=729/216=27/8

(2/3)^4=16/81

(2/3)^-2=(3/2)^2=9/6

16/81+9/6=32/162+243/162=275/162