LON-CAPA alg_rad001.problem

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$\textrm{Simplify: } \frac{a^{{1}/{8}} \ - \ b^{{1}/{8}}}{a^{{1}/{8}} \ + \ {b^{{1}/{8}}}} \ + \ \frac{a^{{1}/{8}} \ + \ b^{{1}/{8}}}{a^{{1}/{8}} \ - \ b^{{1}/{8}}} \textrm{ =}$

$\frac{a^{{1}/{4}}{ \, + \, b^{{1}/{4}}}}{a^{{1}/{4}} \, - \, b^{{1}/{4}}}$

$2$

$\frac{a^{{1}/{4}}{ \, - \, b^{{1}/{4}}}}{a^{{1}/{4}} \, + \, b^{{1}/{4}}}$

$a^{{1}/{4}} \, + \, b^{{1}/{4}}$

$\frac{2(a^{{1}/{4}}{ \, + \, b^{{1}/{4}})}}{a^{{1}/{4}} \, -\, b^{{1}/{4}}}$

$\textrm{None of the above}$

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