Question

determine o domínio
y) cotg (5x)

y= sec (4c +TT/2)

Answer 1

Resposta:

D = {x ≠ kπ/5, k ∈ Z}

D = {x ≠ kπ/4, k ∈ Z}

Explicação passo-a-passo:

f(x) = cotg(x)

5x ≠ 0 + kπ

D = {x ≠ kπ/5, k ∈ Z}

f(x) sec(4x + π/2)

4x + π/2 ≠ π/2 + kπ

4x ≠ kπ

x ≠ kπ/4

x ≠ kπ/4 ∈ Z