Limits of functions with negative exponents

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Homework Statement



lim h->0 [(11+h)^-1 - 11^-1]/h

Homework Equations





The Attempt at a Solution



I made the numerator into two fractions with the denominator h. After combining the fractions in the numerator I was left with 121 when I put in 0 for h.
 

Answers and Replies

  • #2
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Homework Statement



lim h->0 [(11+h)^-1 - 11^-1]/h

Homework Equations





The Attempt at a Solution



I made the numerator into two fractions with the denominator h. After combining the fractions in the numerator I was left with 121 when I put in 0 for h.
You have a sign error. Check your work.
 

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