1) considerando a funçao f, dada por f(x) = -3x+1 calcule:
a) f(√2)
b) x, para f(x)=0
c) x, para f(x)=19
2) resolva em R, as inequações
a) 3x-12 < 0
b) 5 (- x + 1 ) + 2 (3x - 4) > -1
Soluções para a tarefa
Respondido por
1
1-
a) -3√2 + 1
b)



c)



2-
a)




b)



a) -3√2 + 1
b)
c)
2-
a)
b)
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