Difference between revisions of "1953 AHSME Problems/Problem 7"
(Created page with "== Problem == The fraction <math>\frac{\sqrt{a^2+x^2}-\frac{x^2-a^2}{\sqrt{a^2+x^2}}}{a^2+x^2}</math> reduces to: <math>\textbf{(A)}\ 0 \qquad \textbf{(B)}\ \frac{2a^2}{a^2...") |
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Revision as of 15:25, 23 June 2016
Problem
The fraction reduces to:
Solution
Multiplying the numerator and denominator by results in Since , if we call , the denominator is really just . So, the fraction is just .