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a) √60 ÷ 30 + 19 ×0+ 2²=
b)√2 × 2 × 2 + 1 + 5²× √9=
c)√36 ÷ 6² × 5¹+3³=
d)√49 ÷ √(49 × 7²=
e)√100 ÷ 2 + √36=
f)√9²÷√81x5²
obs: tem raiz quadrada e potencia
Anônimo:
onde fecha os Parênteses na D?
Respostas
respondido por:
0
a)
= √60 ÷ 30 + 19 × 0+ 2²
= √4.√15 : 30 + 0 + 4
= 2√15 + 4
---------
30
= √15 + 4
-------
5
**********************************
b)
= √2 × 2 × 2 + 1 + 5² × √9
= √2 . 4 + 1 + 25 . 3
= 4√2 + 1 + 75
= 4√2 + 76
= 4(√2 + 19)
*****************************
c)
= √36 ÷ 6² × 5¹ + 3³
= 6 : 36 . 5 + 27
= 6 . 5 + 27
------
36
= 1 . 5 + 27
------
6
= 5 + 27
------
6
5 + 162
= --------------
6
= 167/6
******************************
d)
= √49 ÷ √(49 × 7²)
= 7 : √(49.49)
= 7 : √49²
= 7 : 49
= 7 (:7) = 1
----- -----
49 (:7) 7
= 1/7
***************************
e)
= √100 ÷ 2 + √36=
= 10 : 2 + 6
= 5 + 6
= 11
************************
f)
= √9² ÷ √81 x 5²
= 9 : 9 . 25
= 1 . 25
= 25
= √60 ÷ 30 + 19 × 0+ 2²
= √4.√15 : 30 + 0 + 4
= 2√15 + 4
---------
30
= √15 + 4
-------
5
**********************************
b)
= √2 × 2 × 2 + 1 + 5² × √9
= √2 . 4 + 1 + 25 . 3
= 4√2 + 1 + 75
= 4√2 + 76
= 4(√2 + 19)
*****************************
c)
= √36 ÷ 6² × 5¹ + 3³
= 6 : 36 . 5 + 27
= 6 . 5 + 27
------
36
= 1 . 5 + 27
------
6
= 5 + 27
------
6
5 + 162
= --------------
6
= 167/6
******************************
d)
= √49 ÷ √(49 × 7²)
= 7 : √(49.49)
= 7 : √49²
= 7 : 49
= 7 (:7) = 1
----- -----
49 (:7) 7
= 1/7
***************************
e)
= √100 ÷ 2 + √36=
= 10 : 2 + 6
= 5 + 6
= 11
************************
f)
= √9² ÷ √81 x 5²
= 9 : 9 . 25
= 1 . 25
= 25
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