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World5
@World5
July 2022
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Нужен только 24!!!!!!))))
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Удачник66
Verified answer
Числитель
2,71^4 - 1,29^4 = (2,71^2 - 1,29^2)(2,71^2 + 1,29^2) =
= (2,71 - 1,29)(2,71 + 1,29)(2,71^2 + 1,29^2) = 1,42*4*(2,71^2 + 1,29^2)
Знаменатель
(2,71 + 1,29)^2 - 2,71*2,58 = 2,71^2 + 1,29^2 + 2*2,71*1,29 - 2,71*2,58 =
= 2,71^2 + 1,29^2 + 2,71*2,58 - 2,71*2,58 = 2,71^2 + 1,29^2
Сокращаем 2,71^2 + 1,29^2 и получаем
1,42*4 = 5,68
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Answers & Comments
Verified answer
Числитель2,71^4 - 1,29^4 = (2,71^2 - 1,29^2)(2,71^2 + 1,29^2) =
= (2,71 - 1,29)(2,71 + 1,29)(2,71^2 + 1,29^2) = 1,42*4*(2,71^2 + 1,29^2)
Знаменатель
(2,71 + 1,29)^2 - 2,71*2,58 = 2,71^2 + 1,29^2 + 2*2,71*1,29 - 2,71*2,58 =
= 2,71^2 + 1,29^2 + 2,71*2,58 - 2,71*2,58 = 2,71^2 + 1,29^2
Сокращаем 2,71^2 + 1,29^2 и получаем
1,42*4 = 5,68