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Zhetpisbay
@Zhetpisbay
October 2021
1
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1)x²-16<0;
2)x²-95≤0;
3)x²+1>0;
4)x²-3≥0;
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meripoppins60
1) x² - 16 < 0
х₁ = - 4 или х₂ = 4
-4 4
--------°\\\\\\\\\\\\\\\\\°-----> x
x∈ (-4; 4)
2) x² - 95 ≤ 0
х₁ = - √95 или х₂ = √95
-√95 √95
--------*\\\\\\\\\\\\\\\\\\\\\\\\*-----> x
x∈ [-√95 ; √95]
3) x² + 1 > 0
x
² > -1 - НЕТ решения
4) x² - 3 ≥ 0
х₁ = - √3 или х₂ = √3
-√3 √3
\\\\\\\\\\\\*---------------------*\\\\\\\\\\> x
x∈ (-∞; -√3] U [√3; +∞)
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Answers & Comments
х₁ = - 4 или х₂ = 4
-4 4
--------°\\\\\\\\\\\\\\\\\°-----> x
x∈ (-4; 4)
2) x² - 95 ≤ 0
х₁ = - √95 или х₂ = √95
-√95 √95
--------*\\\\\\\\\\\\\\\\\\\\\\\\*-----> x
x∈ [-√95 ; √95]
3) x² + 1 > 0
x² > -1 - НЕТ решения
4) x² - 3 ≥ 0
х₁ = - √3 или х₂ = √3
-√3 √3
\\\\\\\\\\\\*---------------------*\\\\\\\\\\> x
x∈ (-∞; -√3] U [√3; +∞)