x)...

NNNLLL54

Verified answer

$9\cdot 4^{1/x}+5\cdot 6^{1/x}\ \textless \ 4\cdot 9^{1/x}\\\\9\cdot (2\cdot 2)^{1/x}+5\cdot (2\cdot 3)^{1/x}-4\cdot (3\cdot 3)^{1/x}\ \textless \ 0\; |:(3\cdot 3)^{1/x}\ \textgreater \ 0\\\\9\cdot (\frac{2}{3})^{2/x}+5\cdot ( \frac{2}{3} )^{1/x}-4\ \textless \ 0\\\\t=( \frac{2}{3} )^{1/x}\ \textgreater \ 0\; ,\quad 9t^2+5t-4\ \textless \ 0\\\\D=25+144=169\; ,\; \; t_1= \frac{-5-13}{18}=-1\\\\t_2=\frac{-5+13}{18} =\frac{8}{18}= \frac{4}{9} =(\frac{2}{3})^2\; \; \; \Rightarrow$

$+++(-1)---((\frac{2}{3})^2)+++$

$-1$

$Tak\; kak\; \; \frac{2}{3}$

$\frac{1}{x}>2\; \; \; \Rightarrow \; \; \; \frac{1}{x}-2>0\\\\\frac{1-2x}{x}>0\; ,\; \; \frac{2x-1}{x}$

2 votes Thanks 2

ВладимирБ 2/3 < 1 нужно было поменять знак 1/х>2

NNNLLL54 Да, забыла...

Answers & Comments

Verified answer

Verified answer

668 najti iks kak reshat takie zadaniya

u nevesomogo rychaga nahodyashegosya v ravnovesii plechi sil ravny 30 i 40 sm k m

na kletchatoj bumage s keletkami 1sm h 1sm izobrazhen chetyrehugolnik najdite ego

sostavte predlozheniyaobrashaya vnimanie na poryadok slov v predlozhenii 1das ku

kazhdyj nerabotayushij chelovek negodyaj esse po obshestvu

8(log2(x-2)^4)^2=...

opredelit massovuyu dolyu hcl v rastvore solyanoj kisloty massoj 200 gramm esli vf48174c1e84fe28bf45a7122945db93f 45202

pomogite postavit nedostayushie zapyatye zapyatye v predlozhenii esli ne nado bolsh

3...

cos25x koren 9 h22x2 10

рекомендуемые вопросы

Helpful Links

Helpful Social