Помогите, пожалуйста, Упростить выражение:....................................................................................................................................................................................................................................................................................![frac{ sqrt{a}- sqrt{b} }{ sqrt[4]{a} - sqrt[4]{b} } - frac{ sqrt{a} + sqrt[4]{ab} }{ sqrt[4]{a}+ sqrt[4]{b} } frac{ sqrt{a}- sqrt{b} }{ sqrt[4]{a} - sqrt[4]{b} } - frac{ sqrt{a} + sqrt[4]{ab} }{ sqrt[4]{a}+ sqrt[4]{b} }](https://tex.z-dn.net/?f=+%5Cfrac%7B+%5Csqrt%7Ba%7D-+%5Csqrt%7Bb%7D+%7D%7B+%5Csqrt%5B4%5D%7Ba%7D+-+%5Csqrt%5B4%5D%7Bb%7D+%7D+-+%5Cfrac%7B+%5C+%5Csqrt%7Ba%7D+%2B+%5Csqrt%5B4%5D%7Bab%7D+%7D%7B+%5Csqrt%5B4%5D%7Ba%7D%2B+%5Csqrt%5B4%5D%7Bb%7D+%7D+)
(√a -√b)/(a^1/4 -b^1/4) - (√a +(ab)^1/4)/(a^1/4 +b^1/4) =
(a^1/4 -b^1/4)(a^1/4+b^1/4)/(a^1/4 -b^1/4) - a^(1/4) *( a^1/4+b^1/4)/(a^1/4 +b^1/4) =
a^1/4+b^1/4 - a^(1/4)=b^1/4.
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