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[tex] \frac{a^{2}-14a+49 }{ a^{2}+3a} \sqrt \frac{(a+3)^{10} }{(a-7)^{2} } [/tex]
Если а > 7
[tex] \frac{a^{2}-14a+49 }{ a^{2}+3a} \sqrt \frac{(a+3)^{10} }{(a-7)^{2} } [/tex]
Если а > 7
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