[tex] \frac{ \sqrt[3]{x}*\sqrt[5]{ x^{3}} }{ x^{-4/15} } [/tex] = 64, если:
1)x=1/32 2)x=16 3)x=32 4)x=64 5)x=128
1)x=1/32 2)x=16 3)x=32 4)x=64 5)x=128
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х¹/₃ *х³/₅
--------------- =х¹/₃⁺³/₅-⁻⁽⁻⁴/₁₅⁾ =х⁵⁺⁹⁺⁴/₁₅ =х¹⁸/₁₅ =х* ⁵√х
х⁻⁴/₁₅
х* ⁵√х=64
х=32
32*⁵√32=32*⁵√2⁵=32*2=64