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[tex]( \frac{ab \frac{1}{2} }{a \frac{1}{2}+ b \frac{1}{2}}+ \frac{ba \frac{1}{2} }{a \frac{1}{2}- b \frac{1}{2} } ) * a \frac{-1}{2} *b \frac{-1}{2} [/tex]
[tex]( \frac{ab \frac{1}{2} }{a \frac{1}{2}+ b \frac{1}{2}}+ \frac{ba \frac{1}{2} }{a \frac{1}{2}- b \frac{1}{2} } ) * a \frac{-1}{2} *b \frac{-1}{2} [/tex]
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((a³/²b¹/² - ab + ba + b³/²a¹/²) / (a - b)) * 1/a¹/² * 1/b¹/² =
(a³/²b¹/² + b³/²a¹/²) / (a - b)a¹/²b¹/² = (a¹/²b¹/²(a + b)) / (a - b)a¹/²b¹/² = a + и / a - b