Verified Answer :

iGreen

We multiply the exponents outside of the parenthesis to all the exponents inside the parenthesis.

\(\sf(y^3)^3\rightarrow~y^{3\times3}\rightarrow~\boxed{\sf~y^9}\)

TSO

We will use this property in exponents to answer your question:

\(\sf{(a^b)^c=a^{b\times c}}\)

So basically we multiply the exponents when it is outside of the parenthesis. So:

\(\sf{(y^3)^3=y^{3\times3}}\)

\(\sf{=y^9}\)

So your answer would be \(\boxed{\sf{y^9}}\)

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