Question

1-efetue as multiplicacoes e divisoes
3/7x2/3x8/5=
9/10x1/4x5/3=
4/7dividido5/8=
10/15dividido2/3

2-calcule as potencias
a)6-2
b)13-2
c)2-6
d)10-3
e)0-12
f)1-7
g)16-0
h)(4/7-2)
i)(12/15)-0

Answer 1

respostas:

1) 3/7 x 2/3 x 8/5 = 16/35

9/10 x 1/4 x 5/3 = 3/8

4/7 ÷ 5/8 = 32/35

10/15 ÷ 2/3 = 1

2) acredito que você quis colocar 6², 13²... Sendo assim:

a) 6² = 6 × 6 = 36

b) 13² = 13 × 13 = 169

c) 2⁶ = 2 × 2 × 2 × 2 × 2 × 2 = 64

d) 10³ = 10 × 10 × 10 = 1000

e) 0¹² = 0

f) 1⁷ = 1

g) 16⁰ = 1

h) (4/7)² = 4²/7² = 16/49

i) (12/15)⁰ = 1