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Why is y^2/y^-2 not equal to 1?
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5 votes
Why is y^2/y^-2 not equal to 1?

User Amit Kotha
by
3.1k points

1 Answer

6 votes

Division of powers:


(a^m)/(a^n)=a^(m-n)

For the given division:


(y^2)/(y^(-2))=y^(2-(-2))=y^(2+2)=y^4_{}

_______________________________________________

Negative power:


a^(-n)=(1)/(a^n)

For the given expression:


undefined

User Jlaceda
by
4.3k points
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