Question

Qual o valor de cada expressão abaixo?
a) (1,9) 2 + (2,1)1=
b) (7,8) 2 - (15,9) 0 =
c) 15 - √36 =
d) 2 + √4/9 =

Rápido por favor

Answer 1

Resposta:

a)

$(1,9) 2 + (2,1)1=\\\\3,8 + 2,1 =\\\\=5,9$

b)

$(7,8) 2 - (15,9) 0 =\\\\15,6-0 =\\\\= 15,6$

c)

$15-\sqrt{36} =\\\\15-6=\\\\=9$

d)

$2 + \frac{\sqrt{4}}{9} =\\\\2+\frac{2}{9}= \\\\\frac{2}{1} +\frac{2}{9} =\\\\\frac{18+2}{9} =\\\\=\frac{20}{9}$