
Paridade de função
Presentation
•
Mathematics
•
9th Grade - University
•
Easy
Newton César
Used 1+ times
FREE Resource
5 Slides • 2 Questions
1
Paridade de função
Par ou Ímpar?
2
Função par
Sejam A um subconjunto de R e f:A→R uma função.
Define-se: f(x) é par se, e somente se:
f(x)=f(−x),∀x∈A
3
Exemplo:
Seja f:R→R , definida por: f(x)=x2
Temos: f(−x)=(−x)2=x2
Logo: f(x)=f(−x)
Portanto, f(x) é par.
4
Função ímpar
Sejam A um subconjunto de R e f:A→R uma função.
Define-se: f(x) é ímpar se, e somente se:
f(−x)=−f(x),∀x∈A
5
Exemplo:
Seja f:R→R , definida por: f(x)=x3
Temos: f(−x)=(−x)3=−x3
Logo: f(−x)=−f(x)
Portanto, f(x) é ímpar.
6
Multiple Select
Recordando... vimos que a função f(x)=x2 é
Par
Ímpar
7
Multiple Select
E a função f(x)=x3 é
Par
Ímpar
Paridade de função
Par ou Ímpar?
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