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alexandraa
@alexandraa
July 2022
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СРОЧНО!!
Найдите наименьшее значение x из области определения функции y= [tex] \sqrt{7 ^{2x}- \frac{1}{49} } [/tex]
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sedinalana
Verified answer
7^2x -1/49≥0
7^2x≥7^-2
2x≥-2
x≥-1
x∈[-1;∞)
Ответ x=-1
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Answers & Comments
Verified answer
7^2x -1/49≥07^2x≥7^-2
2x≥-2
x≥-1
x∈[-1;∞)
Ответ x=-1