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Maksimovskaya
@Maksimovskaya
August 2022
1
9
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ПОМОГИТЕ,ДРУЗЬЯ, ПОЖАЛУЙСТА
СРОЧНО НУЖНО
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m11m
{x≠0
{2 -
x²+4
≥0
2x
{6+x≥0
2 -
x²+4
≥0
2x
4x-x²-4
≥0
2x
-
(x²-4x+4)
≥0
2x
(x-2)²
≤0
2x
2x(x-2)(x-2) ≤0
x=0 x=2
- + +
------------- 0 ------------
2
----------------
\\\\\\\\\\\\\\
x∈(-∞; 0)
6+x≥0
x≥-6
{x∈(-∞; 0)
{x≥-6
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
----------
-6
--------------- 0 -----------------
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
x∈[-6; 0)
х={-6; -5; -4; -3; -2; -1;}
сумма=-6-5-4-3-2-1=-21
Ответ: -21
1 votes
Thanks 1
Maksimovskaya
спасибо большое:3
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Answers & Comments
{2 - x²+4 ≥0
2x
{6+x≥0
2 - x²+4 ≥0
2x
4x-x²-4 ≥0
2x
-(x²-4x+4) ≥0
2x
(x-2)² ≤0
2x
2x(x-2)(x-2) ≤0
x=0 x=2
- + +
------------- 0 ------------ 2 ----------------
\\\\\\\\\\\\\\
x∈(-∞; 0)
6+x≥0
x≥-6
{x∈(-∞; 0)
{x≥-6
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
---------- -6 --------------- 0 -----------------
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
x∈[-6; 0)
х={-6; -5; -4; -3; -2; -1;}
сумма=-6-5-4-3-2-1=-21
Ответ: -21