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MissWei
@MissWei
July 2022
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log3(log36(log^2(216)(x+4\x)+1\18)+7\2=1
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Удачник66
Verified answer
Будем решать снаружи внутрь.
log3(Z1) = 1
Если Y^2 = 1/9, то Y1 = -1/3; Y2 = 1/3
1)
x + 4/x = 1/6
6x^2 + 24 = x
6x^2 - x + 24 = 0
D = 1 - 4*6*24 < 0
Решений нет
2)
x + 4/x = 6
x^2 + 4 = 6x
x^2 - 6x + 4 = 0
D/4 = 3^2 - 4 = 9 - 4 = 5
x1 = 3 - √5 - это решение
x2 = 3 + √5 - это решение
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Answers & Comments
Verified answer
Будем решать снаружи внутрь.log3(Z1) = 1
Если Y^2 = 1/9, то Y1 = -1/3; Y2 = 1/3
1)
x + 4/x = 1/6
6x^2 + 24 = x
6x^2 - x + 24 = 0
D = 1 - 4*6*24 < 0
Решений нет
2)
x + 4/x = 6
x^2 + 4 = 6x
x^2 - 6x + 4 = 0
D/4 = 3^2 - 4 = 9 - 4 = 5
x1 = 3 - √5 - это решение
x2 = 3 + √5 - это решение