Giải giúp câu c e cảm ơn

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Giải giúp câu c e cảm ơn
giai-giup-cau-c-e-cam-on

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Môn Toán Ladonna 4 years 2020-11-11T05:26:17+00:00 2020-11-11T05:26:17+00:00 1 Answers 57 views 0

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Captcha* Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )

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Vodka · Answer 1 · 2020-11-11T05:28:07+00:00

Vodka

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2020-11-11T05:28:07+00:00 November 11, 2020 at 5:28 am

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c) $A < 1$

$\leftrightarrow \frac{\sqrt{x}}{\sqrt{x} - 1} < 1$

$\leftrightarrow \frac{\sqrt{x}}{\sqrt{x} - 1} - 1 < 0$

$\leftrightarrow \frac{1}{\sqrt{x} - 1} < 0$

$\leftrightarrow \sqrt{x} - 1 < 0$

$\leftrightarrow \sqrt{x} < 1$

$\leftrightarrow 0 \leq x < 1$