Question

3) Calcule as expressões:
a) (1/3)² + (1/2)² =
b) (3/4)¹ . (1/5)² =
c) (2/3)² : (1/3)² =
 
4) Represente as raízes na forma fatorada:
a) √20 =
b) √32 =
 
5) Resolva as expressões:
a) √32 + √18 =
b) √80 - √20 =

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Answer 1

Resposta:

Explicação passo-a-passo:

3) Calcule as expressões:

a) (1/3)² + (1/2)² = 13/36

b) (3/4)¹ . (1/5)² = 3/100

c) (2/3)² : (1/3)² = 4

4) Represente as raízes na forma fatorada:

a) √20 = 2√5

b) √32 = 4√2

5) Resolva as expressões:

a) √32 + √18 = 7√2

b) √80 - √20 =  2√5