Докажите неравенство . Created by oKOTLETAo. algebra-ru

Докажите неравенство ...

oKOTLETAo @oKOTLETAo

August 2022 1 4 Report

Докажите неравенство

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Kean1234

Ответ:

$\frac{a^2 + 5}{\sqrt{a^2 + 4} } \geq 2\\x = a^2 + 4; x > 0\\\frac{x+1}{\sqrt{x} } \geq 2\\\\x + 1 \geq 2\sqrt{x} \\\\x - 2\sqrt{x} + 1\geq 0\\(\sqrt{x} - 1)^2\geq 0\\(\sqrt{a^2 + 4} - 1)^2\geq 0$

т.к квадрат любого числа больше или равен 0, и то неравенство наше действильное

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oKOTLETAo August 2022 | 0 Ответы

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oKOTLETAo July 2022 | 0 Ответы

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oKOTLETAo November 2021 | 0 Ответы

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Answers & Comments

prislushivatsya li don kihot k sancho pansa za kem konechnoe reshenie

kakoe iz veshestv nazvaniya kotoryh privedeny mozhet vzaimodejstvovat kak s kisl9fd25f2654e6a682fb22241031fe8f20 80120

dokazhite neravenstvo2a 52a5 3a 22 menshe ili ravno 34a 9 2na foto 2

vyberi ryad himicheskih formul oboznachayushih veshestva vse iz kotoryh mogut vzaimoe987133c681c423b9837f56ff0211b13 6914

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