minasaleh2006 minasaleh2006

24-05-2022
Mathematics

contestada

If a = 3 and b = -i, then find the value of the ab² in fully simplified form.

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goddessboi goddessboi

24-05-2022

Answer:

[tex]ab^2=3[/tex]

[tex](ab)^2=-9[/tex]

Step-by-step explanation:

You don't give parentheses, so pick the most appropriate answer:

[tex]ab^2=3(-i)^2=3(-i)(-i)=3(-(-1))=3[/tex]

[tex](ab)^2=(3(-i))^2=(-3i)^2=9i^2=9(-1)=-9[/tex]

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