POR FAVOR, ME AJUDEM??
Resolva as operações com Radicais:
a) 2√6 ÷ 4√5
b) √8 ÷ √3
c) 20√24 ÷ 20√8
d) 35√15 ÷ 7√3
e) 66√9/33√3
Soluções para a tarefa
Respondido por
0
a) 2√6 ÷ 4√5
2√6 (:2) √6 √5 √30 = √30
------- = -------- = -------- -------
4√5 (:2) 2√5 √5 2.5 10
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
b) √8 ÷ √3
√8 √3 = √24 = √4.√6 = 2√6
----- -------- ---------- --------
√3 √3 3 3 3
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
c) 20√24 ÷ 20√8
20√24 √8.√3 = √3
--------- = ----------
20√8 √8
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
d) 35√15 ÷ 7√3
35√15 (:7) 5√5.√3
----------- = ------------- = 5√5
7√3 (:7) √3
**********************************************
e) 66√9/33√3
66√9 (:33) 2.√3.√3 = 2.√3
-------- = --------------
33√3 (:33) √3
2√6 (:2) √6 √5 √30 = √30
------- = -------- = -------- -------
4√5 (:2) 2√5 √5 2.5 10
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
b) √8 ÷ √3
√8 √3 = √24 = √4.√6 = 2√6
----- -------- ---------- --------
√3 √3 3 3 3
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
c) 20√24 ÷ 20√8
20√24 √8.√3 = √3
--------- = ----------
20√8 √8
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
d) 35√15 ÷ 7√3
35√15 (:7) 5√5.√3
----------- = ------------- = 5√5
7√3 (:7) √3
**********************************************
e) 66√9/33√3
66√9 (:33) 2.√3.√3 = 2.√3
-------- = --------------
33√3 (:33) √3
Perguntas interessantes
Inglês,
10 meses atrás
História,
10 meses atrás
Geografia,
10 meses atrás
Geografia,
1 ano atrás
Matemática,
1 ano atrás