Question

CALCULE

2⁻¹ ÷1/2=

(1/3)⁻¹ₓ2/3=

2⁻³÷2=

Answer 1

2⁻¹ ÷1/2= 1/2 ÷1/2 = 1

(1/3)⁻¹ₓ2/3= (3/1)¹ × 2/3 = 3 ×2/3 = 2

2⁻³÷2= 2^-3-1 = 2-⁴ = 1/2⁴ = 1/16

Answer 2

Resposta:

Explicação passo-a-passo:

CALCULE  

2⁻¹ ÷1/2=                             (atenção  2⁻¹ = 1/2¹ = 1/2)

1/2 : 1/2 = 1

(1/3)⁻¹ₓ2/3=                   atenção (1/3)⁻¹ = (3/1)⁺¹ = (3/1)¹ = (3/1)

(3/1) x (2/3)

3/1 x 2/3

3x2/1x3  

6/3 = 2

2⁻³÷2=                                (2 = 2¹)

2⁻³ : 2¹     ( divisão SUBTRAI expoente)

2⁻³⁻¹ = 2⁻⁴  = 1/2⁺⁴ = 1/2⁴ = 1/2x2x2x2 = 1/16