Question

calcule as seguintes expressões:
A)(3‐²/9)

B)3-¹

C)2-¹

D)(5-¹/3)

E)(-2-²/3)

F)(-1-³/2)

G)(-2-²/4)

ALGUÉM PODE MIM AJUDAR ​

Answer 1

a) 3-²÷9 = 1/3² ÷9= 1/9 ÷9= 1/9×1/9= 1/81

b) 3-¹= 1/3

c) 2-¹= 1/2

d) 5-¹÷3= 1/5 ÷3=1/5×1/3= 1/15

e) -2-²÷3= - 1/2² ÷ 3= - 1/4÷3= -1/4×1/3= - 1/12

f) - 1-³÷2= - 1/1³÷2= - 1/2

g) -2-²÷4= - 1/2²÷4= - 1/4 ÷4= - 1/4×1/4= - 1/16