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pomogite121415
@pomogite121415
July 2022
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Очень нужна помощь!!!
Найдите естественную область определения выражения:
[tex]((9- x^{2} )( x+2))^{-7}[/tex]
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КотикШредингера
Verified answer
1/((9-х²)(х+2))^7
(9-х²)(х+2) ≠ 0
9 - х² ≠ 0 или х+2 ≠ 0
x² ≠ 9 или х ≠ -2
х ≠ 3
х ≠ -3
D(f) = (-∞;-3);(-3;-2);(-2;3);(3;+∞)
2 votes
Thanks 2
sedinalana
Verified answer
(3-x)(3+x)(x+2)≠0
x≠3,x≠-3,x≠-2
x∈(-∞-3) U (-3;-2) U (-2;3) U (3;∞)
0 votes
Thanks 0
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Answers & Comments
Verified answer
1/((9-х²)(х+2))^7(9-х²)(х+2) ≠ 0
9 - х² ≠ 0 или х+2 ≠ 0
x² ≠ 9 или х ≠ -2
х ≠ 3
х ≠ -3
D(f) = (-∞;-3);(-3;-2);(-2;3);(3;+∞)
Verified answer
(3-x)(3+x)(x+2)≠0
x≠3,x≠-3,x≠-2
x∈(-∞-3) U (-3;-2) U (-2;3) U (3;∞)