Решение во вложении
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<span>(5,3*10^-4)(3*10^-2)=0.00053*0.03=0.0000159=1.59*10^-5
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1/(x - 3) = 2
ОДЗ
x ≠ 3
2(x - 3) = 1
2x - 6 = 1
2x = 7
x = 3,5
(2x - 1)/(x - 3) ≥ 0
2x - 1 = 0, x = 1/2
x - 3 ≠ 0
x ≠ 3
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1/2 3 x
x∈ ( - ∞; 1/2] (3 + ∞)