Question

Ajuda a amiguinha please


Nunca pedi nada gente (vários pontinhos pra vcs)​

Answer 1

Resposta:

Explicação passo-a-passo:

A)2*2/3-1/3

4/3-1/3

3/3

1

B)

5√2-4√2

√2

C)7*6*5

7*30

210

D)5/5^√7^10/5

7²

49

Answer 2

Resposta:

A) 1

B) 2^(1/2)

C) 210

D) 49

Explicação passo-a-passo:

A)

2 × [8÷27]^(1/3) - [1÷9]^(1/2) =

2 × {[8^(1/3)]÷[27^(1/3)]} - {[1^(1/2)]÷[9^(1/2)]} =

2 × {2÷3} - {1÷3} =

4÷3 - 1÷3 = 3÷3 = 1

B)

50^(1/2) - 32^(1/2) =

[25×2]^(1/2) - [16×2]^(1/2) =

{[25^(1/2)]×[2^(1/2)]} - {[16^(1/2)]×[2^(1/2)]} =

{5×2^(1/2)} - {4×2^(1-2)} =

{5-4}×2^(1/2) =

1×2^(1/2) =

2^(1/2)

C)

49^(1/2) × [36×25]^(1/2) =

7 × {[36^(1/2)]×[25^(1/2)]} =

7 × {6×5} =

7 × {30} =

210

D)

[7^(10)]^(1/5) =

[7]^(10×1/5) =

[7]^(10/5) =

[7]^(2) =

49