PRECISO DE AJUDA URGENTE,POR FAVOR!! OBRIGADA!!! A função definida por f(x)= I x I/x se x≠0 e f(x)=0 se x=0.
Então,podemos afirmar que a imagem f(x) é:

a){-1,0,1}
b)Real
c){0}
d){-1,1}
e)nda
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