Срочно!!!! 45 баллов.

1) $\frac{2}{x ^{ \frac{1}{4} } -y ^{ \frac{1}{4} } }+ \frac{2}{x ^{ \frac{1}{4} }+y ^{ \frac{1}{4} } } = \frac{2x ^{ \frac{1}{4} }+2y ^{ \frac{1}{4} } +2x ^{ \frac{1}{4} } -2y ^{ \frac{1}{4} } }{(x ^{ \frac{1}{4} } ) ^{2}-(y ^{ \frac{1}{4} }) ^{2} } = \frac{4x ^{ \frac{1}{4} } }{x ^{ \frac{1}{2} }-y ^{ \frac{1}{2} } }$
2) $\frac{4x ^{ \frac{1}{4} } }{x ^{ \frac{1}{2} }-y ^{ \frac{1}{2} } }* \frac{x ^{ \frac{1}{2} }-y ^{ \frac{1}{2} } }{6x ^{- \frac{1}{4} } y ^{- \frac{1}{2} } } = \frac{2}{3} x ^{ \frac{1}{4}} *x ^{ \frac{1}{4} }*y ^{ \frac{1}{2} }= \frac{2x ^{ \frac{1}{2} }*y ^{ \frac{1}{2} } }{3}= \frac{2}{3} \sqrt{xy}$