Respuesta :

answer is b

–y^–4 = – 1/y^4

hope that helps
calculista

Answer:

[tex]-\frac{1}{y^{4}}[/tex]

Step-by-step explanation:

we have

[tex]-y^{-4}[/tex]

Remember that

[tex]y^{-b} =\frac{1}{y^{b}}[/tex]

so

[tex]-y^{-4}=-\frac{1}{y^{4}}[/tex]

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