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Помогите решить, пожалуйста!!!
1/((x+3)(x+4)) +1/((x+3)(x+5))+1/(x^2+9x+20)≤1
Ответ: (-∞;-6],(-5;-4),(-4;-3),[-2;∞)
Ответы 2
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Finally on 12 January Scott and his men got to the South Pole. There they saw a Norwegian flag; Amundsen had got there two weeks before.
The people in Scott's expedition died on their way back to the camp. Winter killed them.
They were not the first at the South Pole, but in the hearts of people all over the world they did a more important thing. They showed an example of courage, strength and love for their country.
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