Difference between revisions of "1955 AHSME Problems/Problem 13"
Angrybird029 (talk | contribs) (Created page with "== Problem 13== The fraction <math>\frac{a^{-4}-b^{-4}}{a^{-2}-b^{-2}}</math> is equal to: <math> \textbf{(A)}\ a^{-6}-b^{-6}\qquad\textbf{(B)}\ a^{-2}-b^{-2}\qquad\textbf{...") |
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Revision as of 13:21, 1 August 2020
Problem 13
The fraction is equal to:
Solution
By the difference of squares property, is equivalent to . This means the fraction is now equal to , which simplifies to