Question

77. Calcule o valor das potências.

a) (4/5)²=

b) (1/4)³=

c) (1/3)⁵=

d) (9/10)²=

e) (1/2)⁴=

f) (9/15)¹=

78.Calcule o valor de:

a) (3/2)²=

b) (2/3)⁴=

c) 2/3⁴=

d) 2/3
⁴ =


81.Calcule

a) √9/4 =

b) √49/81=

c) √1/49 =

d) √36/64 =

e) √100/81 =

f) √1/100 =

Answer 1

Resposta:

Explicação passo-a-passo:

a) 16/25

B) 1/64

c) 1/243

D) 81/100

E) 1/16

Answer 2

77. O valor das potências é:

a) (4/5)² = 16/25  

b) (1/4)³ =  1/64

c) (1/3)⁵ = 1/ 243

d) (9/10)² = 81/100

e) (1/2)⁴ = 1/16

f) (9/15)¹ =  9/15

78. O valor das potências é:

a) (3/2)² =  9/4

b) (2/3)⁴ =  16/81

c) 2/3⁴ =  2/81

d) 2/3 ⁴ =  2/81

81. O valor das raízes é:

a) √9/4 =  3/2

b) √49/81 = 7/9

c) √1/49 = 1/7

d) √36/64 =  6/8

e) √100/81 =  10/9

f) √1/100 = 1/10

Explicação:

a) (4/5)² = 4x4/5x5 = 16/25  

b) (1/4)³ =  1x1x1/4x4x4 = 1/64

c) (1/3)⁵ = 1x1x1x1x1/3x3x3x3x3 = 1/ 243

d) (9/10)² 9x9/10x10 = 81/100

e) (1/2)⁴ = 1x1x1x1/2x2x2x2 = 1/16

f) (9/15)¹ =  9/15 = 9/15

a) (3/2)² =  3x3/2x2 = 9/4

b) (2/3)⁴ =  2x2x2x2/3x3x3x3 = 16/81

c) 2/3⁴ =  2/3x3x3x3 = 2/81

d) 2/3 ⁴ =  2/3x3x3x3 = 2/81

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